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JP4387582B2 - Sheet discharging device - Google Patents
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JP4387582B2 - Sheet discharging device - Google Patents

Sheet discharging device Download PDF

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Publication number
JP4387582B2
JP4387582B2 JP2000378277A JP2000378277A JP4387582B2 JP 4387582 B2 JP4387582 B2 JP 4387582B2 JP 2000378277 A JP2000378277 A JP 2000378277A JP 2000378277 A JP2000378277 A JP 2000378277A JP 4387582 B2 JP4387582 B2 JP 4387582B2
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JP
Japan
Prior art keywords
sheet
impeller
holding portion
signature
air
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 - Fee Related
Application number
JP2000378277A
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Japanese (ja)
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JP2002179314A (en
Inventor
健司 藤原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Komori Corp
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Komori Corp
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Filing date
Publication date
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Priority to JP2000378277A priority Critical patent/JP4387582B2/en
Publication of JP2002179314A publication Critical patent/JP2002179314A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/44Moving, forwarding, guiding material
    • B65H2301/446Assisting moving, forwarding or guiding of material
    • B65H2301/4461Assisting moving, forwarding or guiding of material by blowing air towards handled material

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  • Discharge By Other Means (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、巻紙輪転印刷機おける折機の排紙装置等のシート状物の排出装置に関する。
【0002】
【従来の技術】
巻紙輪転印刷機には、印刷後、乾燥冷却されたウエ ブを所定の長さ毎に断裁したり、これを幅方向や長さ方向に折ったりする折機が備えられている。
【0003】
図3は、この種折機の概略側面図であって、これを説明すると、折機1は、図に矢印で示す方向に回転する折胴2、断裁胴3及びくわえ胴4を備えており、図示しない印刷ユニットから折機1へ供給された印刷後のウェブ5は、折胴2と断裁胴3との間へ送り込まれる。
【0004】
そして、ウェブ5は前記両胴2,3の間で所定の寸法に断裁され、折胴2の針(図示せず)により折胴2に巻き付けられ、この後断裁されたウェブ5の略中央部を、折胴2のナイフ(図示せず)が動作すると共にくわえ胴4のくわえ板(図示せず)がくわえることで、折り畳みながらくわえ胴4に巻き付ける。
【0005】
このようにして折られたウェブ5は上下に張架された排紙ベルト6,6に挟まれて移送され、羽根車7によって排紙コンベア8上へ排出されて所定の位置へ移送される。この結果符号9で示す二つ折り(平行折)の折丁が得られる。
【0006】
また、排紙ベルト6,6による折丁の移送経路には、上下に運動するチョッパブレードを備えたチョッパ折装置10が設けられており、その下方には、前記羽根車7と同じ構造の羽根車11が前記羽根車7と軸方向を直交させて軸架されている。
【0007】
そこで、符号12で示すような四つ折り(チョッパ折)の折丁を得たい場合には、チョッパ折装置10を作動させると、排紙ベルト6,6で移送中の折丁9がチョッパ折装置10によって中央部から折られ、羽根車11で排紙コンベア8上へ排出されて移送される。
【0008】
このように、一台の折機で二種類の折丁9,12の折紙を選択的に行うようになっている。尚、図中13は羽根車7の下方に位置して固定的に設けられて羽根車7で運ばれてきた折丁9を下方の排紙コンベア8上へ導く当て(ストリッパー)である。
【0009】
【発明が解決しようとする課題】
ところで、上述したような排紙装置においては、排紙ベルトと羽根車との折丁に対する搬送速度によっては、羽根車の羽根の間の保持部に進入した折丁の尻側(保持部から突出した状態にある)が羽根車の回転方向上流側に湾曲した場合に、後続の折丁の保持部を覆うことになり、これにより後続の折丁と干渉して紙詰まり等を起こすという問題点があった。
【0010】
本発明はこのような問題を解決するものであって、シート状物の搬送速度等にかかわらず、羽根車におけるシート状物の紙詰まり等を効果的に回避できるシート状物の排出装置を提供することを目的とする。
【0011】
【課題を解決するための手段】
上述の目的を達成するための本発明のシート状物の排出装置は、送出されたシート状物を羽根の間の保持部に保持して回転搬送する羽根車と、前記保持部に保持されたシート状物よりも前記羽根車の回転方向上流側に設けられ、前記シート状物によって次のシート状物の保持部を覆わないように該羽根車に保持された前記シート状物の後端側をエアー吐出するエアー吹き装置を設けたことを特徴とする。
【0012】
また、前記エアー吹き装置は、前記保持部にシート状物の後端側が到達したときにエアーを吐出するロータリーバルブを備えたことを特徴とする。
【0013】
また、送出されたシート状物を羽根の間の保持部に保持して回転搬送する羽根車と、前記シート状物によって次のシート状物の保持部を覆わないようにエアー又は進退によって該羽根車に保持された前記シート状物の後端側を前記羽根車の回転方向側に曲げる曲げ装置を設けたことを特徴とする。
【0014】
【発明の実施の形態】
以下、本発明に係るシート状物の排出装置を実施例により図面を用いて詳細に説明する。
【0015】
[実施例]
図1は本発明の一実施例を示す折機の排紙装置における羽根車部の側面図、図2は同じくエア吹き装置の平面図である。尚、これらの図において、図3と同一部材には同一符号を付して重複する説明は省略する。
【0016】
図1に示すように、一対の排紙ベルト6,6で搬送された折丁(シート状物)9は、排紙ベルト6,6下方に配設された羽根車7を介して、図示しない排紙コンベア(図3の符号8参照)上に排紙されるようになっている。そして、前記羽根車7の羽根の間の折丁進入部(保持部)に、折丁9の尻側を羽根車7の回転方向下流側に積極的に湾曲させる(曲げる)エアー吹き装置(姿勢規制手段でかつ曲げ装置でもある)20が配設される。
【0017】
前記エアー吹き装置20は、図2に示すように、一対のフレーム21,21間に回転自在に架設されて外周一部に軸方向に長く面取り部22aが形成された回転軸22と、前記面取り部22aを覆うように当該回転軸22に嵌装されてブラケット23によりフレーム21に固定された筒状の弁ハウジング24と、該弁ハウジング24の一側から延出されて図示しない羽根車7の軸方向間隙内に吹出口25aをそれぞれ臨入させた複数本(図示例では、軸方向へ所定間隔離間して3本設けられる)のエアーノズル管25と、同弁ハウジング24の他側に一端が接続されて他端が図示しないコンプレッサー等加圧エアー供給源に接続されたエアー供給管26とを備える。尚、図2中27は弁ハウジング24を回転軸22に気密に嵌装するためのOリングで、28は回転軸22の回転を許容するためのベアリングである。
【0018】
また、フレーム21外に突出した回転軸22の一端にはギヤ29が固設され、該ギヤ29は図示しないギヤトレインを介して折機の原動側に連繋している。
【0019】
従って、前記回転軸22は、折機と同期して回転駆動されることになる。そして、本実施例では、羽根車7の折丁進入部に折丁9の尻側が到達した時に、各エアーノズル管25の吹出口25aから加圧エアーが吹き出すようになっている。つまり、回転軸22の1回転毎にその面取り部22aによって各エアーノズル管25とエアー供給管26とが連通する時期が上述した時期と同期されているのである。
【0020】
ところで、従来の折機の排紙装置では、前述したように、一対の排紙ベルト6,6で搬送された折丁9が羽根車7に搬送・保持される際に、排紙ベルト6,6と羽根車7との折丁9に対する搬送速度によっては、羽根車7の保持部に進入した折丁9の尻側が羽根車7の回転方向上流側に湾曲した場合に、後続の折丁の保持部を覆うことになり、これにより後続の折丁9と干渉して紙詰まり等を起こす虞があった。
【0021】
ところが、本実施例では、羽根車7の保持部に折丁9の尻側が到達した時に、各エアーノズル管25の吹出口25aから加圧エアーが一斉に吹き出す。これにより、折丁9の尻側が羽根車7の回転方向下流側に瞬時に大きく逃がされる(積極的に曲げられる)。この結果、折丁9の搬送速度如何にかかわらず、前記折丁9の尻側が後続の折丁の保持部を覆うことはなく、後続の折丁9と干渉して紙詰まり等を起こすのが回避される。
【0022】
また、本実施例では、ロータリーバルブを構成する前記回転軸22を折機と機械的に同期させて回転駆動しているので、加圧エアーの吹出し時期の調整が容易である。また、面取り部22aの大きさを変えることで、加圧エアーの吹出し量も容易に変更できる。
【0023】
また、容易に入手可能な加圧エアー供給源を用いて安価に実現できると共に、折丁9を非接触で制御でき、円滑な搬送が可能となる。
【0024】
尚、本発明は上記実施例に限定されず、本発明の要旨を逸脱しない範囲で各種変更が可能であることはいうまでもない。例えば、エアー吹き装置20を電磁弁や折丁尻検出センサー等を用いて電気的に構成しても良い。更に、姿勢規制手段として、プッシュロッド等を進退させて折丁尻を真っ直ぐ挿入・保持したり又は羽根車の回転方向側に積極的に曲げたりする機械的なものを用いても良い。勿論、前記エアー吹き装置20で折丁尻を保持部に真っ直ぐ挿入・保持するように規制しても良い。
【0025】
【発明の効果】
以上、実施例を挙げて詳細に説明したように、本発明のシート状物の排出装置によれば、送出されたシート状物を羽根の間の保持部に保持して回転搬送する羽根車と、該羽根車に保持された前記シート状物の後端側を、次のシート状物の保持部を覆わないように規制する姿勢規制手段を備えたことを特徴とするので、シート状物の搬送速度等にかかわらず、羽根車におけるシート状物の紙詰まり等を効果的に回避できる。
【0026】
また、前記姿勢規制手段は、エアー吹き装置であることを特徴とするので、容易に入手可能な加圧エアー供給源を用いて安価に実現できると共に、シート状物を非接触で制御でき、円滑な搬送が可能となる。
【0027】
また、前記姿勢規制手段は、羽根車の回転方向側に曲げる曲げ装置であることを特徴とするので、種々の曲げ装置を選択採用でき、汎用性が高まる。
【図面の簡単な説明】
【図1】本発明の一実施例を示す折機の排紙装置における羽根車部の側面図である。
【図2】同じくエア吹き装置の平面図である。
【図3】従来例に係る折機の全体側面図である。
【符号の説明】
1 折機
2 折胴
3 断裁胴
4 くわえ胴
5 ウェブ
6 排紙ベルト
7 羽根車
8 排紙コンベア
9 折丁
10 チョッパ折装置
11 羽根車
12 折丁
13 当て(ストリッパー)
20 エアー吹き装置
21 フレーム
22 回転軸
22a 面取り部
23 ブラケット
24 弁ハウジング
25 エアーノズル管
25a 吹出口
26 エアー供給管
27 Oリング
28 ベアリング
29 ギヤ
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sheet discharge device such as a discharge device of a folding machine in a web-fed rotary printing press.
[0002]
[Prior art]
A web-fed rotary printing press is equipped with a folding machine that cuts a dried and cooled web every predetermined length after printing or folds the web in a width direction or a length direction.
[0003]
FIG. 3 is a schematic side view of this kind of folding machine. To explain this, the folding machine 1 includes a folding cylinder 2, a cutting cylinder 3 and a holding cylinder 4 that rotate in the direction indicated by the arrows in the figure. The web 5 after printing supplied from the printing unit (not shown) to the folding machine 1 is fed between the folding cylinder 2 and the cutting cylinder 3.
[0004]
The web 5 is cut to a predetermined size between the cylinders 2 and 3, wound around the folding cylinder 2 by a needle (not shown) of the folding cylinder 2, and then the substantially central portion of the web 5 that has been cut. As the knife (not shown) of the folding cylinder 2 is operated and the holding plate (not shown) of the holding cylinder 4 is added, the folding cylinder 2 is wound around the holding cylinder 4 while being folded.
[0005]
The web 5 folded in this manner is sandwiched and transported between the paper discharge belts 6 and 6 stretched up and down, and is discharged onto the paper discharge conveyor 8 by the impeller 7 and transferred to a predetermined position. As a result, a folded (parallel folded) signature indicated by reference numeral 9 is obtained.
[0006]
Further, a chopper folding device 10 having a chopper blade that moves up and down is provided in a path for transferring signatures by the paper discharge belts 6 and 6, and a blade having the same structure as the impeller 7 is provided below the chopper folding device 10. A wheel 11 is mounted on the impeller 7 with its axial direction orthogonal to each other.
[0007]
Therefore, in order to obtain a four-fold (chopper-folded) signature as indicated by reference numeral 12, when the chopper folding device 10 is operated, the signature 9 being transferred by the paper discharge belts 6 and 6 is moved to the chopper folding device. 10 is folded from the center, and is ejected onto the paper delivery conveyor 8 by the impeller 11 and transferred.
[0008]
In this way, the folding paper of the two types of signatures 9 and 12 is selectively performed by a single folding machine. In the figure, reference numeral 13 denotes a stopper (stripper) that is fixedly provided below the impeller 7 and guides the signature 9 carried by the impeller 7 onto the lower discharge conveyor 8.
[0009]
[Problems to be solved by the invention]
By the way, in the paper discharge device as described above, depending on the conveyance speed of the paper discharge belt and the impeller with respect to the signature, the bottom side of the signature that has entered the holding portion between the blades of the impeller (projecting from the holding portion). When the blade is curved upstream in the rotational direction of the impeller, it will cover the holding part of the subsequent signature, causing interference with the subsequent signature and causing a paper jam etc. was there.
[0010]
The present invention solves such a problem, and provides a sheet-like material discharge device that can effectively avoid a paper jam of a sheet-like material in an impeller regardless of the conveyance speed of the sheet-like material. The purpose is to do.
[0011]
[Means for Solving the Problems]
In order to achieve the above-described object, the sheet discharge apparatus of the present invention includes an impeller that rotates and conveys the delivered sheet-like material in a holding unit between the blades, and is held by the holding unit. A rear end side of the sheet-like object that is provided on the upstream side in the rotational direction of the impeller with respect to the sheet-like object and is held by the impeller so as not to cover a holding portion of the next sheet-like object by the sheet-like object An air blowing device for discharging air is provided .
[0012]
In addition, the air blowing device includes a rotary valve that discharges air when a rear end side of the sheet-like material reaches the holding portion .
[0013]
In addition, an impeller that rotates and conveys the sheet-like material that is sent to the holding portion between the blades, and the blade by air or advancing and retreating so that the sheet-like material does not cover the holding portion of the next sheet-like material. A bending device is provided that bends the rear end side of the sheet-like material held in a car toward the rotational direction side of the impeller .
[0014]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, a sheet discharging apparatus according to the present invention will be described in detail with reference to the drawings by way of examples.
[0015]
[Example]
FIG. 1 is a side view of an impeller portion in a paper discharge device of a folding machine according to an embodiment of the present invention, and FIG. 2 is a plan view of the air blowing device. In these drawings, the same members as those in FIG.
[0016]
As shown in FIG. 1, a signature (sheet-like material) 9 conveyed by a pair of paper discharge belts 6 and 6 is not shown via an impeller 7 disposed below the paper discharge belts 6 and 6. Paper is discharged onto a paper discharge conveyor (see reference numeral 8 in FIG. 3). An air blowing device (attitude) that positively curves (bends) the bottom side of the signature 9 to the downstream side in the rotational direction of the impeller 7 at the signature entry portion (holding portion) between the blades of the impeller 7. 20 which is a regulating means and also a bending device.
[0017]
As shown in FIG. 2, the air blowing device 20 includes a rotating shaft 22 that is rotatably supported between a pair of frames 21 and 21 and has a chamfered portion 22 a formed in a part of the outer periphery in the axial direction, and the chamfered portion. A cylindrical valve housing 24 fitted to the rotary shaft 22 and fixed to the frame 21 by a bracket 23 so as to cover the portion 22a, and an impeller 7 (not shown) extending from one side of the valve housing 24. A plurality of air nozzle pipes 25 (three in the illustrated example are provided at a predetermined interval in the axial direction) with the air outlets 25 a respectively inserted in the axial gap, and one end on the other side of the valve housing 24. And an air supply pipe 26 having the other end connected to a pressurized air supply source such as a compressor (not shown). In FIG. 2, 27 is an O-ring for fitting the valve housing 24 to the rotating shaft 22 in an airtight manner, and 28 is a bearing for allowing the rotating shaft 22 to rotate.
[0018]
A gear 29 is fixed to one end of the rotating shaft 22 protruding outside the frame 21, and the gear 29 is connected to the driving side of the folding machine via a gear train (not shown).
[0019]
Accordingly, the rotary shaft 22 is rotationally driven in synchronization with the folder. In the present embodiment, when the bottom side of the signature 9 reaches the signature entry portion of the impeller 7, the pressurized air is blown out from the outlet 25 a of each air nozzle tube 25. That is, the timing at which each air nozzle tube 25 and the air supply tube 26 communicate with each other by the chamfered portion 22a for each rotation of the rotating shaft 22 is synchronized with the above-described timing.
[0020]
By the way, in the paper discharge device of the conventional folding machine, as described above, when the signature 9 conveyed by the pair of paper discharge belts 6 and 6 is conveyed and held by the impeller 7, the paper discharge belts 6 and 6 are used. 6 and the impeller 7 depending on the conveyance speed with respect to the signature 9, when the bottom side of the signature 9 that has entered the holding portion of the impeller 7 is curved upstream in the rotational direction of the impeller 7, As a result, the holding part is covered, and there is a possibility that paper jam occurs due to interference with the subsequent signature 9.
[0021]
However, in this embodiment, when the bottom side of the signature 9 reaches the holding portion of the impeller 7, the pressurized air is blown out simultaneously from the outlets 25 a of the air nozzle tubes 25. Thereby, the bottom side of the signature 9 is greatly escaped (positively bent) instantaneously to the downstream side in the rotation direction of the impeller 7. As a result, regardless of the conveyance speed of the signature 9, the bottom side of the signature 9 does not cover the holding portion of the subsequent signature, and may interfere with the subsequent signature 9 to cause a paper jam or the like. Avoided.
[0022]
Further, in this embodiment, the rotary shaft 22 constituting the rotary valve is rotationally driven in mechanical synchronization with the folding machine, so that it is easy to adjust the timing of blowing the pressurized air. Moreover, the blowing amount of pressurized air can be easily changed by changing the size of the chamfered portion 22a.
[0023]
Further, it can be realized at low cost by using a readily available pressurized air supply source, and the signature 9 can be controlled in a non-contact manner, thereby enabling smooth conveyance.
[0024]
Needless to say, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the present invention. For example, the air blowing device 20 may be electrically configured using a solenoid valve, a signature bottom detection sensor, or the like. Further, as the posture regulating means, a mechanical device that advances and retracts the push rod or the like and inserts and holds the signature bottom straight or actively bends in the rotational direction side of the impeller may be used. Needless to say, the air blowing device 20 may be used to regulate so that the signature bottom is inserted and held straight into the holding portion.
[0025]
【The invention's effect】
As described above in detail with reference to the embodiments, according to the sheet-like material discharge device of the present invention, the impeller that rotates and conveys the sheet-like material that is delivered to the holding portion between the blades. The sheet-like object is provided with posture restriction means for restricting the rear end side of the sheet-like object held by the impeller so as not to cover the holding portion of the next sheet-like object. Regardless of the conveyance speed or the like, it is possible to effectively avoid a paper jam or the like of the sheet-like material in the impeller.
[0026]
In addition, since the posture regulating means is an air blowing device, it can be realized at low cost by using a readily available pressurized air supply source, and the sheet-like material can be controlled in a non-contact manner. Transport is possible.
[0027]
Moreover, since the said attitude | position control means is a bending apparatus bent to the rotation direction side of an impeller, various bending apparatuses can be selected and employ | adopted and versatility increases.
[Brief description of the drawings]
FIG. 1 is a side view of an impeller part in a paper discharge device of a folding machine according to an embodiment of the present invention.
FIG. 2 is a plan view of the air blowing device.
FIG. 3 is an overall side view of a folder according to a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Folding machine 2 Folding cylinder 3 Cutting cylinder 4 Holding cylinder 5 Web 6 Discharge belt 7 Impeller 8 Discharge conveyor 9 Fold 10 Chopper folding device 11 Impeller 12 Fold 13 Catch (stripper)
20 Air blower 21 Frame 22 Rotating shaft 22a Chamfer 23 Bracket 24 Valve housing 25 Air nozzle pipe 25a Air outlet 26 Air supply pipe 27 O-ring 28 Bearing 29 Gear

Claims (3)

送出されたシート状物を羽根の間の保持部に保持して回転搬送する羽根車と、前記保持部に保持されたシート状物よりも前記羽根車の回転方向上流側に設けられ、前記シート状物によって次のシート状物の保持部を覆わないように該羽根車に保持された前記シート状物の後端側をエアー吐出するエアー吹き装置を設けたことを特徴とするシート状物の排出装置。An impeller that rotates and conveys the sheet-like material that is sent to the holding portion between the blades, and is provided on the upstream side in the rotation direction of the impeller with respect to the sheet-like material held by the holding portion, and the sheet An air blowing device for discharging air from the rear end side of the sheet-like material held by the impeller so as not to cover the holding portion of the next sheet-like material by the shape-like material is provided. Discharging device. 前記エアー吹き装置は、前記保持部にシート状物の後端側が到達したときにエアーを吐出するロータリーバルブを備えたことを特徴とする請求項1記載のシート状物の排出装置。2. The sheet discharging apparatus according to claim 1 , wherein the air blowing device includes a rotary valve that discharges air when a rear end side of the sheet reaches the holding portion . 送出されたシート状物を羽根の間の保持部に保持して回転搬送する羽根車と、前記シート状物によって次のシート状物の保持部を覆わないようにエアー又は進退によって該羽根車に保持された前記シート状物の後端側を前記羽根車の回転方向側に曲げる曲げ装置を設けたことを特徴とするシート状物の排出装置。 An impeller that rotates and conveys the sheet-like material that has been sent out to a holding portion between the blades, and the impeller by air or advancing and retreating so that the holding portion of the next sheet-like material is not covered by the sheet-like material. An apparatus for discharging a sheet-like material, comprising: a bending device that bends the rear end side of the held sheet-like material toward the rotating direction of the impeller .
JP2000378277A 2000-12-13 2000-12-13 Sheet discharging device Expired - Fee Related JP4387582B2 (en)

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DE102005038323A1 (en) * 2005-08-11 2007-02-15 Eastman Kodak Co. Equipment depositing sheets in electro-photographic printing equipment includes radial air blower and outlet duct directing air against sheet to be deposited
DE102005039433A1 (en) * 2005-08-18 2007-02-22 Eastman Kodak Co. Sheet depositing device for e.g. electrophotographically operating printing machine, has blower arrangement having radial vent with air exit channel, where arrangement is used for application of air to sheet

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