EP0618157A1 - Device for separating sheets in an office machine and method for adjusting a retainer of this device - Google Patents

Device for separating sheets in an office machine and method for adjusting a retainer of this device Download PDF

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Publication number
EP0618157A1
EP0618157A1 EP94400654A EP94400654A EP0618157A1 EP 0618157 A1 EP0618157 A1 EP 0618157A1 EP 94400654 A EP94400654 A EP 94400654A EP 94400654 A EP94400654 A EP 94400654A EP 0618157 A1 EP0618157 A1 EP 0618157A1
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EP
European Patent Office
Prior art keywords
stop
support member
support piece
roller
support
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.)
Granted
Application number
EP94400654A
Other languages
German (de)
French (fr)
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EP0618157B1 (en
Inventor
Patrick Vegeais
Eric Cavarero
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Sagem SA
Original Assignee
Sagem SA
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Publication date
Application filed by Sagem SA filed Critical Sagem SA
Publication of EP0618157A1 publication Critical patent/EP0618157A1/en
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Publication of EP0618157B1 publication Critical patent/EP0618157B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/52—Friction retainers acting on under or rear side of article being separated
    • B65H3/5207—Non-driven retainers, e.g. movable retainers being moved by the motion of the article
    • B65H3/523—Non-driven retainers, e.g. movable retainers being moved by the motion of the article the retainers positioned over articles separated from the bottom of the pile
    • B65H3/5238—Retainers of the pad-type, e.g. friction pads

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Abstract

Device for separating sheets in a packet, in an office machine, such as a fax machine, comprising an extraction roller (18), a bearing member (14) pressed elastically in the direction of the roller, and a retainer (stop) (5) limiting the maximum distance between the extraction roller and bearing member. The retainer is mounted so as to slide in a support piece (1) in the direction of the bearing member, elastic means (9) being provided in order to push the said retainer in this direction, and blocking means (11, 12) being provided in order to prevent the said sliding. <IMAGE>

Description

La présente invention concerne un dispositif de séparation des feuilles en paquet dans une machine de bureau telle qu'un télécopieur, et plus particulièrement un tel dispositif comprenant un galet d'extraction, un organe d'appui pressé élastiquement en direction du galet, et une butée limitant la distance maximale entre le galet d'extraction et l'organe d'appui, ainsi qu'un procédé de réglage de la butée de ce dispositif.The present invention relates to a device for separating sheets into packages in an office machine such as a fax machine, and more particularly such a device comprising an extraction roller, a support member pressed elastically in the direction of the roller, and a stop limiting the maximum distance between the extraction roller and the support member, as well as a method for adjusting the stop of this device.

Dans une machine de bureau à chargeur de feuilles en paquet et à entraînement en déplacement des feuilles une à une, et notamment dans un télécopieur, les feuilles de papier à traiter peuvent être présentées en paquet, au moins deux, dans un chargeur, les unes au dessus des autres, contre un galet d'extraction d'une part, et un patin de retenue d'autre part. Le galet en caoutchouc est agencé pour entraîner ces feuilles une à une, celles qui se trouvent au-dessus de la feuille extraite étant retenues par le patin également en caoutchouc. Au cours de son déplacement, et au-delà du galet, une feuille passe entre des rouleaux d'un laminoir d'entraînement qui l'amènent à son poste de traitement.In an office machine with a sheet feeder in a package and with a drive for moving the sheets one by one, and in particular in a fax machine, the sheets of paper to be treated can be presented in packs, at least two, in a feeder, each above the others, against an extraction roller on the one hand, and a retaining pad on the other. The rubber roller is arranged to drive these sheets one by one, those which are above the extracted sheet being retained by the pad also made of rubber. During its movement, and beyond the roller, a sheet passes between rollers of a drive rolling mill which bring it to its processing station.

Afin de laisser passer une feuille de papier, le patin doit pouvoir s'écarter du galet d'extraction. Cet écartement doit toutefois être limité afin d'empêcher le passage de plusieurs feuilles simultanément entre le rouleau et le patin. A cet effet, on prévoit de façon connue de presser le patin en direction du galet d'extraction à l'aide d'un organe d'appui sollicité par des moyens élastiques, et de limiter le déplacement de cet organe d'appui à l'aide d'une butée.In order to allow a sheet of paper to pass, the shoe must be able to move away from the extraction roller. This spacing must however be limited in order to prevent the passage of several sheets simultaneously between the roller and the shoe. To this end, provision is made, in known manner, for pressing the shoe in the direction of the extraction roller by means of a support member urged by elastic means, and to limit the movement of this support member using a stop.

Cette butée présente l'inconvénient de nécessiter un réglage très délicat, tant lors du montage de la machine que lors des opérations de maintenance.This stop has the drawback of requiring very delicate adjustment, both during assembly of the machine and during maintenance operations.

La présente invention vise à pallier ces inconvénients.The present invention aims to overcome these drawbacks.

A cet effet, l'invention a tout d'abord pour objet un dispositif de séparation des feuilles en paquet dans une machine de bureau telle qu'un télécopieur, comprenant un galet d'extraction, un organe d'appui pressé élastiquement en direction du galet, et une butée limitant la distance maximale entre le galet d'extraction et l'organe d'appui, caractérisé par le fait que la butée est montée coulissante dans une pièce de support en direction de l'organe d'appui, des moyens élastiques étant prévus pour pousser ladite butée dans cette direction, et des moyens de blocage étant prévus pour empêcher ledit coulissement.To this end, the invention firstly relates to a device for separating sheets into packages in an office machine such as a fax machine, comprising an extraction roller, a support member pressed elastically in the direction of the roller, and a stop limiting the maximum distance between the extraction roller and the support member, characterized in that the stop is slidably mounted in a support piece in the direction of the support member, means elastic being provided to push said stopper in this direction, and locking means being provided to prevent said sliding.

Dans un mode de réalisation particulier, la butée est sensiblement cylindrique et les moyens élastiques comprennent un ressort hélicoïdal en appui d'une part sur la pièce de support et, d'autre part, sur un épaulement de la butée.In a particular embodiment, the stop is substantially cylindrical and the elastic means comprise a helical spring bearing on the one hand on the support piece and, on the other hand, on a shoulder of the stop.

Les moyens de blocage peuvent notamment comprendre une bride enserrant ladite butée.The locking means may in particular comprise a flange enclosing said stop.

Avantageusement, l'organe d'appui est lui-même monté coulissant sur la pièce de support.Advantageously, the support member is itself slidably mounted on the support part.

Cet organe d'appui peut plus particulièrement comprendre deux saillies latérales engagées chacune dans une rainure de la pièce de support.This support member may more particularly comprise two lateral projections each engaged in a groove in the support piece.

La pièce de support peut en particulier comprendre des moyens d'encliquetage sur le bâti de ladite machine de bureau.The support piece may in particular comprise means for snapping onto the frame of said office machine.

La présente invention a également pour objet un procédé de réglage de la butée du dispositif décrit ci-dessus comprenant les étapes consistant à :

  • bloquer la butée sur la pièce de support à l'aide des moyens de blocage, dans une position écartée de sa position d'utilisation ;
  • monter la pièce de support sur le bâti de la machine de bureau avec la butée en vis à vis de l'organe d'appui et du galet d'extraction ;
  • placer une cale d'épaisseur calibrée entre l'organe d'appui et le galet d'extraction ;
  • relâcher puis resserrer les moyens de blocage.
The present invention also relates to a method for adjusting the stop of the device described above, comprising the steps consisting in:
  • block the stop on the support piece using the locking means, in a position away from its position of use;
  • mount the support piece on the frame of the office machine with the stopper opposite the support member and the extraction roller;
  • place a calibrated shim between the support member and the extraction roller;
  • release and then tighten the locking means.

Le dispositif selon l'invention réduit donc le réglage de la butée à un minimum d'opérations.The device according to the invention therefore reduces the adjustment of the stop to a minimum of operations.

Une fois les différents organes montés sur le bâti de la machine, il suffit en effet de placer entre l'organe d'appui et le galet d'extraction de la machine, la cale calibrée dont l'épaisseur est égale au jeu que l'on souhaite pour l'organe d'appui. Les moyens de blocage sont alors désserrés, libérant ainsi la butée qui, sous l'action des moyens élastiques, vient au contact de l'organe d'appui et presse celui-ci contre la cale, elle-même en contact avec le galet d'extraction.Once the various members mounted on the machine frame, it suffices to place between the support member and the extraction roller of the machine, the calibrated shim whose thickness is equal to the clearance that the one wishes for the support member. The locking means are then loosened, thus releasing the stop which, under the action of the elastic means, comes into contact with the support member and presses it against the wedge, itself in contact with the extraction roller.

Si l'on resserre alors les moyens de blocage, la butée est bloquée dans la position convenable et il suffit alors de retirer la cale calibrée.If the locking means are then tightened, the stop is locked in the appropriate position and it then suffices to remove the calibrated wedge.

L'opération de réglage consiste donc uniquement à mettre en place la cale calibrée et à déserrer puis resserrer les moyens de blocage de la butée.The adjustment operation therefore consists solely in setting up the calibrated shim and in loosening and then tightening the means for locking the stop.

La précision du réglage de la butée est donc la précision obtenue sur l'épaisseur de la cale. Il est ainsi possible d'améliorer le fonctionnement du dispositif de séparation des feuilles.The precision of the adjustment of the stop is therefore the precision obtained on the thickness of the shim. It is thus possible to improve the operation of the sheet separation device.

L'invention permet également de gagner du temps lors du montage de la machine de bureau comportant le dispositif.The invention also saves time during assembly of the office machine comprising the device.

Par ailleurs, lorsque l'organe d'appui est lui-même monté sur la pièce de support, on obtient un dispositif monobloc, ce qui permet de réduire le nombre de pièces, le coût de la fonction de séparation des feuilles et le temps de montage. On réduit également le coût de la maintenance du fait d'une interchangeabilité aisée du dispositif et on augmente la fiabilité.Furthermore, when the support member is itself mounted on the support piece, a one-piece device is obtained, which makes it possible to reduce the number of pieces, the cost of the sheet separation function and the time for mounting. The cost of maintenance is also reduced due to the easy interchangeability of the device and reliability is increased.

On décrira maintenant à titre d'exemple non limitatif un mode de réalisation particulier de l'invention, en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue en coupe d'un dispositif selon l'invention, avec sa butée en position de fonctionnement,
  • la figure 2 est une vue en coupe partielle selon la ligne A-A avec la butée en position d'attente, et
  • la figure 3 est une vue également en coupe partielle selon la ligne A-A illustrant le procédé de réglage de la butée.
A particular embodiment of the invention will now be described by way of nonlimiting example, with reference to the appended drawings in which:
  • FIG. 1 is a sectional view of a device according to the invention, with its stop in the operating position,
  • FIG. 2 is a partial sectional view along line AA with the stopper in the standby position, and
  • Figure 3 is also a partial sectional view along line AA illustrating the method of adjusting the stop.

Le dispositif représenté à la figure 1 comprend une pièce de support 1, munie de pattes 2 d'encliquetage sur le bâti 3 d'une machine de bureau telle qu'un télécopieur.The device shown in Figure 1 comprises a support piece 1, provided with tabs 2 for snapping onto the frame 3 of an office machine such as a fax machine.

La pièce de support 1 forme un logement tubulaire 4 à l'intérieur duquel est disposée une butée cylindrique 5. La butée 5 comporte une queue 6 de moindre diamètre formant un épaulement 7 et délimitant avec le logement tubulaire 4 un espace annulaire 8, dans lequel est disposé un ressort hélicoïdal 9 en appui d'une part sur l'épaulement 7 et, d'autre part, sur une paroi 10 d'extrémité du logement 4, la queue 6 de la butée 5 traversant cette paroi 10.The support piece 1 forms a tubular housing 4 inside which is disposed a cylindrical stopper 5. The stopper 5 comprises a tail 6 of smaller diameter forming a shoulder 7 and delimiting with the tubular housing 4 an annular space 8, in which a helical spring 9 is disposed bearing on the one hand on the shoulder 7 and, on the other hand, on a wall 10 at the end of the housing 4, the tail 6 of the stop 5 passing through this wall 10.

Une bride 11 réalisée ici d'une seule pièce avec la pièce de support 1 permet de bloquer la butée 5 en translation dans son logement 4. A cet effet, la bride 11 enserre la butée 5 et son extrémité est serrée à l'aide d'une vis 12 engagée dans un trou 13 de la pièce 1.A flange 11 produced here in one piece with the support piece 1 makes it possible to block the stop 5 in translation in its housing 4. For this purpose, the flange 11 surrounds the stop 5 and its end is tightened using 'a screw 12 engaged in a hole 13 of the part 1.

Le dispositif selon l'invention comprend également un organe d'appui 14 à section en V, également monté coulissant dans la pièce de support 1.The device according to the invention also comprises a support member 14 with a V section, also slidingly mounted in the support part 1.

A cet effet, l'organe d'appui 14 comprend deux saillies latérales 15 engagées chacune entre les deux branches 16 d'une pièce en épingle à cheveux solidaire de la pièce de support 1, les deux branches 16 de chaque épingle à cheveux délimitant entre elles une rainure de coulissement pour la saillie 15 correspondante.To this end, the support member 14 comprises two lateral projections 15 each engaged between the two branches 16 a hairpin piece integral with the support piece 1, the two branches 16 of each hairpin defining between them a sliding groove for the corresponding projection 15.

Un ressort hélicoïdal 17 disposé autour de la butée 5 est en appui, d'une part sur la pièce de support 1 et, d'autre part, sur l'organe d'appui 14 qu'il sollicite en direction d'un galet d'extraction de feuilles 18 monté sur le bâti 3.A helical spring 17 disposed around the stop 5 is supported, on the one hand on the support part 1 and, on the other hand, on the support member 14 which it biases in the direction of a roller d extraction of sheets 18 mounted on the frame 3.

L'organe d'appui 14 est donc coulissant entre deux positions de butée, l'une où il se trouve en appui sur la butée 5 à l'écart du galet 18, et l'autre où il se trouve en appui sur les pièces en épingle à cheveux à proximité du galet 18.The support member 14 is therefore sliding between two stop positions, one where it is in support on the stop 5 away from the roller 18, and the other where it is in support on the parts. hairpin near the roller 18.

Lors du montage du dispositif selon l'invention, l'organe d'appui 14 et le ressort 17 sont mis en place dans la pièce de support ainsi que le ressort 9 et la butée 5. Celle-ci est amenée dans sa position représentée à la figure 2, avec le ressort 9 comprimé, position dans laquelle elle est maintenue en place en serrant la vis 12.During assembly of the device according to the invention, the support member 14 and the spring 17 are put in place in the support piece as well as the spring 9 and the stopper 5. The latter is brought into its position shown at FIG. 2, with the compressed spring 9, position in which it is held in place by tightening the screw 12.

L'ensemble ainsi configuré est encliqueté sur le bâti 3 de la machine avec l'organe d'appui 14 en vis à vis du galet d'extraction 18.The assembly thus configured is snapped onto the frame 3 of the machine with the support member 14 facing the extraction roller 18.

Une cale 19 d'épaisseur e égale au jeu que l'on souhaite obtenir pour l'organe d'appui 14 est alors disposée entre cet organe d'appui et le galet d'extraction 18. L'ensemble est maintenu dans cette position par le ressort 17 qui pousse la pièce d'appui 14 contre la cale calibrée 19, elle-même en appui sur le galet 18.A shim 19 of thickness e equal to the clearance which it is desired to obtain for the support member 14 is then disposed between this support member and the extraction roller 18. The assembly is held in this position by the spring 17 which pushes the support piece 14 against the calibrated wedge 19, itself bearing on the roller 18.

Le réglage de la butée 5 s'effectue en désserrant la vis 12, ce qui a pour effet de relâcher le blocage de la butée 5 par la bride 11, la butée 5 étant alors amenée par le ressort 9 en appui sur l'organe d'appui 14. La vis 12 est alors resserrée pour maintenir la butée 5 dans la position ainsi obtenue et la cale calibrée 19 peut être retirée, le ressort 17 amenant alors l'organe d'appui 14 en butée contre le galet 18, l'organe 14 disposant ainsi dans cette position d'un jeu possible égal à e.The adjustment of the stop 5 is carried out by loosening the screw 12, which has the effect of releasing the blocking of the stop 5 by the flange 11, the stop 5 then being brought by the spring 9 bearing on the member d 'support 14. The screw 12 is then tightened to maintain the stop 5 in the position thus obtained and the calibrated shim 19 can be removed, the spring 17 then bringing the support member 14 into abutment against the roller 18, the member 14 thus having in this position a possible clearance equal to e.

Claims (7)

Dispositif de séparation des feuilles en paquet dans une machine de bureau telle qu'un télécopieur, comprenant un galet d'extraction (18), un organe d'appui (14) pressé élastiquement en direction du galet, et une butée (5) limitant la distance maximale entre le galet d'extraction et l'organe d'appui, caractérisé par le fait que la butée est montée coulissante dans une pièce de support (1) en direction de l'organe d'appui, des moyens élastiques (9) étant prévus pour pousser ladite butée dans cette direction, et des moyens de blocage (11, 12) étant prévus pour empêcher ledit coulissement.Device for separating sheets into packages in an office machine such as a fax machine, comprising an extraction roller (18), a support member (14) pressed elastically in the direction of the roller, and a stop (5) limiting the maximum distance between the extraction roller and the support member, characterized in that the stop is slidably mounted in a support piece (1) in the direction of the support member, elastic means (9 ) being provided to push said stopper in this direction, and blocking means (11, 12) being provided to prevent said sliding. Dispositif selon la revendication 1, dans lequel la butée est sensiblement cylindrique et les moyens élastiques comprennent un ressort hélicoïdal (9) en appui d'une part sur la pièce de support et d'autre part sur un épaulement (7) de la butée.Device according to claim 1, in which the stop is substantially cylindrical and the elastic means comprise a helical spring (9) bearing on the one hand on the support piece and on the other hand on a shoulder (7) of the stop. Dispositif selon l'une quelconque des revendications 1 et 2, dans lequel les moyens de blocage comprennent une bride (11) enserrant ladite butée.Device according to either of Claims 1 and 2, in which the locking means comprise a flange (11) enclosing said stop. Dispositif selon l'une quelconque des revendications 1 à 3, dans lequel l'organe d'appui est monté coulissant sur la pièce de support.Device according to any one of claims 1 to 3, in which the support member is slidably mounted on the support piece. Dispositif selon la revendication 4, dans lequel l'organe d'appui comporte deux saillies latérales (15) engagées chacune dans une rainure de la pièce de support.Device according to claim 4, in which the support member comprises two lateral projections (15) each engaged in a groove in the support piece. Dispositif selon l'une quelconque des revendications 1 à 5, dans lequel la pièce de support comprend des moyens (2) d'encliquetage sur le bâti (3) de ladite machine de bureau.Device according to any one of claims 1 to 5, in which the support piece comprises means (2) for snapping onto the frame (3) of said office machine. Procédé de réglage de la butée du dispositif selon l'une quelconque des revendication 1 à 6, comprenant les étapes consistant à : - bloquer la butée sur la pièce de support à l'aide des moyens de blocage, dans une position écartée de sa position d'utilisation ; - monter la pièce de support sur le bâti de la machine de bureau avec la butée en vis à vis de l'organe d'appui et du galet d'extraction ; - placer une cale d'épaisseur calibrée entre l'organe d'appui et le galet d'extraction ; - relâcher puis resserrer les moyens de blocage. Method for adjusting the stop of the device according to any one of Claims 1 to 6, comprising the steps consisting in: - Lock the stop on the support piece using the locking means, in a position away from its position of use; - Mount the support piece on the frame of the office machine with the stopper opposite the support member and the extraction roller; - place a calibrated shim between the support member and the extraction roller; - release then tighten the locking means.
EP94400654A 1993-03-30 1994-03-28 Device for separating sheets in an office machine and method for adjusting a retainer of this device Expired - Lifetime EP0618157B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9303663A FR2703341B1 (en) 1993-03-30 1993-03-30 Device for separating sheets in an office machine and method for adjusting the stop of this device.
FR9303663 1993-03-30

Publications (2)

Publication Number Publication Date
EP0618157A1 true EP0618157A1 (en) 1994-10-05
EP0618157B1 EP0618157B1 (en) 1997-05-28

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EP94400654A Expired - Lifetime EP0618157B1 (en) 1993-03-30 1994-03-28 Device for separating sheets in an office machine and method for adjusting a retainer of this device

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US (1) US5417412A (en)
EP (1) EP0618157B1 (en)
CA (1) CA2120089C (en)
DE (1) DE69403377T2 (en)
DK (1) DK0618157T3 (en)
ES (1) ES2102783T3 (en)
FR (1) FR2703341B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6029972A (en) * 1998-03-19 2000-02-29 Gamemax Corporation Toothed wheel operated adjusting device for card stacking machines
US5906366A (en) * 1998-03-19 1999-05-25 Gamemax Corporation Card outlet clearance adjusting device for card stacking machines
TWI280224B (en) * 2005-09-13 2007-05-01 Benq Corp A sheet feeder enabling proper feeding alingment

Citations (4)

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US2214752A (en) * 1939-06-14 1940-09-17 Todd Co Inc Sheet feeding mechanism
DE1278210B (en) * 1963-06-21 1968-09-19 Fmc Corp Device for adjusting the gap on a magazine for removing box blanks
US4313598A (en) * 1979-08-29 1982-02-02 Brandt-Pra, Inc. Self-compensating stripper assembly for document handling and counting apparatus
EP0157343A2 (en) * 1984-04-04 1985-10-09 Mathias Bäuerle GmbH Sheet feeder for paper-processing machines including a separating device adjustable to different sheet thicknesses

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US4232860A (en) * 1978-10-20 1980-11-11 Automecha Ltd. Paper feeder
JPH0361235A (en) * 1989-07-31 1991-03-18 Nissei Oputo Kk Document separating and feeding device in facsimile apparatus
US5143365A (en) * 1989-08-14 1992-09-01 Green Ronald J Paper sheet feeding apparatus
JPH0790936B2 (en) * 1989-09-16 1995-10-04 キヤノン株式会社 Sheet material separation device
US5163668A (en) * 1991-08-29 1992-11-17 Xerox Corporation Retard pad assembly with movable compliant entrance guide
JP2538147B2 (en) * 1991-09-30 1996-09-25 松下電送株式会社 Automatic paper feeder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2214752A (en) * 1939-06-14 1940-09-17 Todd Co Inc Sheet feeding mechanism
DE1278210B (en) * 1963-06-21 1968-09-19 Fmc Corp Device for adjusting the gap on a magazine for removing box blanks
US4313598A (en) * 1979-08-29 1982-02-02 Brandt-Pra, Inc. Self-compensating stripper assembly for document handling and counting apparatus
EP0157343A2 (en) * 1984-04-04 1985-10-09 Mathias Bäuerle GmbH Sheet feeder for paper-processing machines including a separating device adjustable to different sheet thicknesses

Also Published As

Publication number Publication date
FR2703341A1 (en) 1994-10-07
DE69403377T2 (en) 1997-10-09
FR2703341B1 (en) 1995-05-24
CA2120089A1 (en) 1994-10-01
ES2102783T3 (en) 1997-08-01
CA2120089C (en) 2004-05-18
EP0618157B1 (en) 1997-05-28
US5417412A (en) 1995-05-23
DK0618157T3 (en) 1997-12-15
DE69403377D1 (en) 1997-07-03

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