EP0017234B1 - Device for the individual separation and removal of single sheets from a stack - Google Patents

Device for the individual separation and removal of single sheets from a stack Download PDF

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Publication number
EP0017234B1
EP0017234B1 EP80101795A EP80101795A EP0017234B1 EP 0017234 B1 EP0017234 B1 EP 0017234B1 EP 80101795 A EP80101795 A EP 80101795A EP 80101795 A EP80101795 A EP 80101795A EP 0017234 B1 EP0017234 B1 EP 0017234B1
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EP
European Patent Office
Prior art keywords
roller
sheets
stack
rotation
rollers
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
Application number
EP80101795A
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German (de)
French (fr)
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EP0017234A1 (en
Inventor
Henri Buys
Camille Carisey
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Bull Transac
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Bull Transac
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Publication date
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Publication of EP0017234A1 publication Critical patent/EP0017234A1/en
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Publication of EP0017234B1 publication Critical patent/EP0017234B1/en
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Classifications

    • 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
    • B65H3/5246—Driven retainers, i.e. the motion thereof being provided by a dedicated drive
    • B65H3/5253—Driven retainers, i.e. the motion thereof being provided by a dedicated drive the retainers positioned under articles separated from the top of the pile
    • B65H3/5261—Retainers of the roller type, e.g. rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
    • B65H5/062—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers between rollers or balls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1912—Banknotes, bills and cheques or the like

Definitions

  • the present invention relates to a device for separating and extracting stacked sheets one by one.
  • the object of the present invention is to remedy this drawback by proposing a device for separating and extracting sheets one by one with a retaining roller effectively coming into action only when a sheet is already engaged under the driving roller itself. facing.
  • It relates to a device for separating and extracting one by one from stacked sheets
  • a device for separating and extracting one by one from stacked sheets comprising a first roller in contact with the front part of the stack top sheet performing the removal of the sheets from the stack, a second and a third roller arranged opposite the front end of the stack of sheets ensuring the clearance, one by one, of the leaves removed, drive means located downstream of the second and third rollers relative to the first ensuring the drive of the sheets passing through the second and third rollers of the motorization means ensuring the actuation of the drive means and of the first and second rollers, said device being characterized in that the third free rotation roller is provided with means bringing it back to a rest position when it is not driven by a sheet and means angularly limiting its rotation in the direction of passage of a sheet propelled by the second roller or by the means training set.
  • said means angularly limiting the rotation of the third roller in the direction corresponding to the extraction of the sheets, and the return means comprise a plate mounted with a freewheel mechanism on a fixed shaft carrying the third roller, the mechanism free wheel allowing said plate to rotate in the opposite direction to that of extracting the sheets from the stack, said plate comprising a peripheral indentation limiting the movement of a stud fixed perpendicularly to the periphery of the third roller and penetrating into said indentation, a return spring being fixed on the one hand to said stud and on the other hand to said plate so that the force exerted by this spring tends to rotate the third roller in the direction of the free wheel of said plate.
  • the invention is a device for separating and extracting banknotes for which the invention is particularly advantageous since it allows a very reduced rate of simultaneous distribution of several notes and that in this in the case of simultaneous distribution of several tickets, a detector placed downstream of the device according to the invention directs these tickets into a waste receptacle; subsequently, these tickets being counted manually, it is therefore advantageous to avoid these multiple simultaneous distributions as much as possible.
  • the dispensing capacity of a cash dispenser is dependent on the cash dispenser's magazine store, and this capacity is decreased by the amount of bills routed to the waste receptacle.
  • the assembly includes a magazine 1 in which a stack of banknotes is placed 2. On the top of the stack, there rests a first roller 3 separated into two half-rollers 3A and 3B by a first pinion 4 fixed on a first shaft 5. The half-rollers 3A and 3B are mounted freewheel on the shaft 5. A second roller 6 also separated into two half-rollers 6A and 6B by a second pinion 7 fixed on a second shaft 8 is located parallel to the first roller 3 at the front end of the stack of banknotes 2. The half-rollers 6A and 6B are mounted on the freewheel on the shaft 8. A third roller 9 is mounted idly on a third fixed shaft 10 with a device for limiting rotation angular, in a sense, which will be described further.
  • This third roller 9 with an axis parallel to the first and second rollers 3 and 6 is located at the front end of the stack of banknotes 2 under the second roller 6 but without contact with the latter, so that the upper banknote 2A the stack 2 is located at the clearance between the second roller 6 and the third roller 9.
  • Each half-roller 6A and 6B has a groove 11A (or 11B) into which one of the two ends 12 penetrates without touching the bottom ( or 13) of the third roller 9 which also has a very wide groove 14, so that a ticket passing between the rollers 6 and 9 undergoes two transverse undulations which makes it possible to separate the upper ticket from the stack, from the following .
  • the two pinions 4 and 7 are connected by a toothed belt 15.
  • a fourth roller 16 is fixed on the second shaft 8
  • a fifth roller 17 is mounted idly at the end of a lever 18 which can pivot at 19 and is actuated by the piston 20, with a clutch control electromagnet 21, pressing on the end 18A in inclined plane of the lever 18.
  • the drive shaft 23 also carries a second drive roller 28 and under this roller and in contact with it is placed a sixth roller 29 mounted to rotate freely on a shaft 30.
  • drive roller 28 and sixth roller 29 constitute a means driving the upper ticket 2A of the stack 2 when this upper ticket has been separated from the following by the first roller 3, second and third roller 6 and 9 assembly.
  • an electro-optical detector 31 controls the disengagement of the fifth idler roller 17 and the first and second rollers 3 and 6 continue to coast on the first and second shafts 5 and 8 by the friction exerted between these rollers 3 and 6 and the upper ticket driven forward.
  • a connection 39 connects the detector 31 to control the electromagnet 21.
  • a plate 32 is mounted freewheeling on the fixed shaft 10 so that its freedom of rotation on the shaft 10 is in the same direction as the freedom of rotation of the first and second rollers 3 and 6, that is to say say in the direction of the arrows 24 and 27.
  • This plate 32 comprises a peripheral notch 33 and a lug 34 also located in the vicinity of the periphery but on another radius of the plate.
  • the third roller 9 comprises, fixed perpendicularly and in the vicinity of its periphery, a stud 35 which penetrates into the notch 33 of the plate 32 while leaving it a movement of a few degrees.
  • a return spring 36 connects the stud 35 to the lug 34.
  • the third roller 9 is driven in rotation by friction of the ticket against this roller until 'so that the stud 35 abuts against the edge 37 of the notch 33. There, the third roller 9 is blocked since the free wheel of the plate 32 allows the rotation of this plate only in the opposite direction (direction of the arrows 24 and 27).
  • the first and second rollers 3 and 6 are coated with a rubber having a good coefficient of friction, greater than that with which the third roller 9 is coated.
  • the low rotation forward of the third roller 9 makes it possible to properly engage the upper ticket while its blocking after a few degrees stops the ticket located below if it had advanced a little.
  • the return behind the roller 9 once the upper ticket has escaped between the rollers 6 and 9 makes it possible to push back such a ticket.

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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)

Description

La présente invention concerne un dispositif de séparation et d'extraction une à une de feuilles empilées.The present invention relates to a device for separating and extracting stacked sheets one by one.

On connaît de nombreux dispositifs de ce genre notamment par les brevets français n° 2177 747. n° 2 307 738, n° 2 310 948 et n° 2 315 470 dans lesquels les feuilles sont tout d'abord prélevées d'une pile par un galet moteur reposant sur le dessus de la pile ou supportant la pile puis dégagées les unes des autres par friction au passage entre un galet moteur à fort coefficient de frottement tendant à les entraîner en dehors de la pile et un patin ou galet de retenue à coefficient de frottement plus faible mais suffisant pour séparer deux feuilles prises ensemble. La séparation de deux feuilles est souvent facilitée par une ondulation transversale des feuilles provoquée par un profil adéquat du galet ou patin de retenue et du galet moteur lui faisant face. Un galet de retenue mobile entraîné à contresens des feuilles par un moteur est quelquefois préféré à un patin ou galet de retenue fixe pour répartir la zone de frottement des feuilles sur une grande surface formée par toute la périphérie du galet.Numerous devices of this kind are known in particular from French patents No. 2,177,747. No. 2,307,738, No. 2,310,948 and No. 2,315,470 in which the sheets are first removed from a stack by a drive roller resting on the top of the stack or supporting the stack then released from each other by friction when passing between a drive roller with a high coefficient of friction tending to drive them outside the stack and a pad or roller for retaining lower coefficient of friction but sufficient to separate two sheets taken together. The separation of two sheets is often facilitated by a transverse undulation of the sheets caused by an adequate profile of the roller or retaining pad and the motor roller facing it. A movable retaining roller driven in the opposite direction of the sheets by a motor is sometimes preferred to a fixed retaining shoe or roller for distributing the friction zone of the sheets over a large surface formed by the entire periphery of the roller.

Un patin ou galet de retenue fixe ou plus encore, un galet de retenue entraîné à contresens s'oppose à l'engagement du bord avant d'une feuille sous le galet moteur placé en vis-à-vis. Cette opposition doit être vaincue par l'effort exercé au travers de la feuille par le galet moteur assurant le prélèvement de la feuille de la pile ce qui présuppose une certaine rigidité des feuilles. Avec des feuilles minces et peu rigides telles que des billets de banque il se produit des phénomènes de bourrage au droit des galets et patins de retenue qui rendent ces dispositifs peu fiables.A fixed retaining shoe or roller or even more, a retaining roller driven in the opposite direction opposes the engagement of the front edge of a sheet under the drive roller placed opposite. This opposition must be overcome by the force exerted through the sheet by the drive roller ensuring the removal of the sheet from the stack, which presupposes a certain rigidity of the sheets. With thin and not very rigid sheets such as banknotes, padding phenomena occur at the level of the rollers and retaining pads which make these devices unreliable.

La présente invention a pour but de remédier à cet inconvénient en proposant un dispositif de séparation et d'extraction de feuilles une à une avec un galet de retenue n'entrant effectivement en action que lorsqu'une feuille est déjà engagée sous le galet moteur lui faisant face.The object of the present invention is to remedy this drawback by proposing a device for separating and extracting sheets one by one with a retaining roller effectively coming into action only when a sheet is already engaged under the driving roller itself. facing.

Elle a pour objet un dispositif de séparation et d'extraction une à une de feuilles empilées comportant un premier galet en contact avec la partie avant de la feuille de dessus de pile effectuant le prélèvement des feuilles de la pile, un deuxième et un troisième galets disposés en vis-à-vis à l'extrémité avant de la pile de feuilles assurant le dégagement une à une de feuilles prélevées, des moyens d'entraînement situés en aval des deuxième et troisième galets par rapport au premier assurant l'entraînement des feuilles franchissant les deuxième et troisième galets des moyens de motorisation assurant l'actionnement des moyens d'entraînement et du premier et deuxième galets, ledit dispositif étant caractérisé en ce que le troisième galet libre en rotation est pourvu de moyens le rappelant à une position de repos lorsqu'il n'est pas entraîné par une feuille et de moyens limitant angulairement sa rotation dans le sens de passage d'une feuille propulsée par le deuxième galet ou par les moyens d'entraînement.It relates to a device for separating and extracting one by one from stacked sheets comprising a first roller in contact with the front part of the stack top sheet performing the removal of the sheets from the stack, a second and a third roller arranged opposite the front end of the stack of sheets ensuring the clearance, one by one, of the leaves removed, drive means located downstream of the second and third rollers relative to the first ensuring the drive of the sheets passing through the second and third rollers of the motorization means ensuring the actuation of the drive means and of the first and second rollers, said device being characterized in that the third free rotation roller is provided with means bringing it back to a rest position when it is not driven by a sheet and means angularly limiting its rotation in the direction of passage of a sheet propelled by the second roller or by the means training set.

Avantageusement, lesdits moyens limitant angulairement la rotation du troisième galet dans le sens correspondant à l'extraction des feuilles, et les moyens de rappels, comprennent un plateau monté avec un mécanisme de roue libre sur un arbre fixe portant le troisième galet, le mécanisme de roue libre autorisant ledit plateau à tourner dans le sens inverse à celui de l'extraction des feuilles de la pile, ledit plateau comportant une échancrure périphérique limitant le déplacement d'un téton fixé perpendiculairement à la périphérie du troisième galet et pénétrant dans ladite échancrure, un ressort de rappel étant fixé d'une part audit téton et d'autre part audit plateau de manière que l'effort exercé par ce ressort tende à faire tourner le troisième galet dans le sens de la roue libre dudit plateau.Advantageously, said means angularly limiting the rotation of the third roller in the direction corresponding to the extraction of the sheets, and the return means, comprise a plate mounted with a freewheel mechanism on a fixed shaft carrying the third roller, the mechanism free wheel allowing said plate to rotate in the opposite direction to that of extracting the sheets from the stack, said plate comprising a peripheral indentation limiting the movement of a stud fixed perpendicularly to the periphery of the third roller and penetrating into said indentation, a return spring being fixed on the one hand to said stud and on the other hand to said plate so that the force exerted by this spring tends to rotate the third roller in the direction of the free wheel of said plate.

L'invention sera bien comprise à la lumière de la description qui va suivre d'un exemple préféré de réalisation de l'invention, faite en regard du dessin annexé dans lequel :

  • La figure 1 montre schématiquement en élévation un dispositif de séparation et d'extraction de feuilles selon l'invention.
  • La figure 2 est une vue partielle en coupe selon II-II de la figure 1.
  • La figure 3 est une vue de dessus partielle de la figure 1.
The invention will be clearly understood in the light of the following description of a preferred embodiment of the invention, made with reference to the appended drawing in which:
  • Figure 1 shows schematically in elevation a device for separating and extracting sheets according to the invention.
  • FIG. 2 is a partial sectional view along II-II of FIG. 1.
  • Figure 3 is a partial top view of Figure 1.

Dans l'exemple décrit, il s'agit d'un dispositif de séparation et d'extraction de billets de banque pour lequel l'invention est particulièrement avantageuse puisqu'elle permet un taux très réduit de distribution simultanée de plusieurs billets et que dans ce cas de distribution simultanée de plusieurs billets, un détecteur placé en aval du dispositif selon l'invention aiguille ces billets dans un réceptacle de rebut ; ultérieurement, ces billets étant comptés manuellement il est donc intéressant d'éviter le plus possible ces distributions simultanées multiples. En plus de cela, la capacité de distribution d'un distributeur de billets dépend du magasin de stockage des billets du distributeur, et cette capacité est diminuée de la quantité de billets aiguillés vers le réceptacle de rebut.In the example described, it is a device for separating and extracting banknotes for which the invention is particularly advantageous since it allows a very reduced rate of simultaneous distribution of several notes and that in this in the case of simultaneous distribution of several tickets, a detector placed downstream of the device according to the invention directs these tickets into a waste receptacle; subsequently, these tickets being counted manually, it is therefore advantageous to avoid these multiple simultaneous distributions as much as possible. In addition to this, the dispensing capacity of a cash dispenser is dependent on the cash dispenser's magazine store, and this capacity is decreased by the amount of bills routed to the waste receptacle.

L'ensemble comporte un magasin 1 dans lequel est placée une pile de billets 2. Sur le dessus de la pile, repose un premier galet 3 séparé en deux demi-galets 3A et 3B par un premier pignon 4 fixé sur un premier arbre 5. Les demi-galets 3A et 3B sont montés en roue libre sur l'arbre 5. Un second galet 6 également séparé en deux demi-galets 6A et 6B par un deuxième pignon 7 fixé sur un second arbre 8 est situé parallèlement au premier galet 3 à l'extrémité avant de la pile de billets 2. Les demi-galets 6A et 6B sont montés en roue libre sur l'arbre 8. Un troisième galet 9 est monté fou sur un troisième arbre 10 fixe avec un dispositif de limitation de rotation angulaire, dans un sens, qui sera décrit plus loin.The assembly includes a magazine 1 in which a stack of banknotes is placed 2. On the top of the stack, there rests a first roller 3 separated into two half-rollers 3A and 3B by a first pinion 4 fixed on a first shaft 5. The half-rollers 3A and 3B are mounted freewheel on the shaft 5. A second roller 6 also separated into two half-rollers 6A and 6B by a second pinion 7 fixed on a second shaft 8 is located parallel to the first roller 3 at the front end of the stack of banknotes 2. The half-rollers 6A and 6B are mounted on the freewheel on the shaft 8. A third roller 9 is mounted idly on a third fixed shaft 10 with a device for limiting rotation angular, in a sense, which will be described further.

Ce troisième galet 9 d'axe parallèle aux premier et deuxième galets 3 et 6 est situé à l'extrémité avant de la pile de billets 2 sous le second galet 6 mais sans contact avec ce dernier, de telle sorte que le billet supérieur 2A de la pile 2 soit situé au niveau du jeu entre le deuxième galet 6 et le troisième galet 9. Chaque demi-galet 6A et 6B comporte une gorge 11A (ou 11B) dans laquelle pénètre sans toucher le fond l'une des deux extrémité 12 (ou 13) du troisième galet 9 qui comporte également une gorge de grande largeur 14, de façon qu'un billet passant entre les galets 6 et 9 subisse deux ondulations transver- salles ce qui permet de séparer le billet supérieur de la pile, des suivantes.This third roller 9 with an axis parallel to the first and second rollers 3 and 6 is located at the front end of the stack of banknotes 2 under the second roller 6 but without contact with the latter, so that the upper banknote 2A the stack 2 is located at the clearance between the second roller 6 and the third roller 9. Each half-roller 6A and 6B has a groove 11A (or 11B) into which one of the two ends 12 penetrates without touching the bottom ( or 13) of the third roller 9 which also has a very wide groove 14, so that a ticket passing between the rollers 6 and 9 undergoes two transverse undulations which makes it possible to separate the upper ticket from the stack, from the following .

Les deux pignons 4 et 7 sont reliés par une courroie crantée 15. Un quatrième galet 16 est fixé sur le second arbre 8, et un cinquième galet 17 est monté fou à l'extrémité d'un levier 18 qui peut pivoter en 19 et est actionné par le piston 20, d'un électro-aimant 21 de commande d'embrayage, s'appuyant sur l'extrémité 18A en pan incliné du levier 18.The two pinions 4 and 7 are connected by a toothed belt 15. A fourth roller 16 is fixed on the second shaft 8, and a fifth roller 17 is mounted idly at the end of a lever 18 which can pivot at 19 and is actuated by the piston 20, with a clutch control electromagnet 21, pressing on the end 18A in inclined plane of the lever 18.

Dans la position embrayée, l'extrémité 18B du levier 18 est abaissé comme on le voit en trait continu sur la figure 1 et le cinquième galet 17 repose à la fois sur le quatrième galet 16 et sur un galet moteur 22 fixé sur un arbre moteur 23 entraîné en rotation dans le sens des flèches 24 par un moteur 25. Dans cette position, un ressort 26 permet au cinquième galet 17 d'exercer une certaine pression sur le galet moteur 22 et sur le quatrième galet 16 entraînant ainsi en rotation dans le sens des flèches 27 les premier et second arbres 5 et 8 et par le fait même les premier et second galets 3 et 6 montés en roue libre sur ces arbres 5 et 8 de manière que leur liberté de rotation par rapport à ces arbres soit également dans le sens des flèches 24 et 27. Dans la position débrayée, montrée en trait discontinu mixte sur la figure 1, l'extrémité 18B du levier 18 est levée et le cinquième galet 17 est suspendu dans le vide.In the engaged position, the end 18B of the lever 18 is lowered as seen in solid lines in FIG. 1 and the fifth roller 17 rests both on the fourth roller 16 and on a drive roller 22 fixed on a drive shaft 23 driven in rotation in the direction of the arrows 24 by a motor 25. In this position, a spring 26 allows the fifth roller 17 to exert a certain pressure on the drive roller 22 and on the fourth roller 16 thus causing rotation in the direction of arrows 27 the first and second shafts 5 and 8 and thereby the first and second rollers 3 and 6 mounted freewheel on these shafts 5 and 8 so that their freedom of rotation relative to these shafts is also in the direction of the arrows 24 and 27. In the disengaged position, shown in broken broken line in Figure 1, the end 18B of the lever 18 is lifted and the fifth roller 17 is suspended in a vacuum.

L'arbre moteur 23 porte également un deuxième galet moteur 28 et sous ce galet et en contact avec lui est placé un sixième galet 29 monté libre en rotation sur un arbre 30. Ces deux galets : galet moteur 28 et sixième galet 29 constituent un moyen d'entraînement du billet supérieur 2A de la pile 2 lorsque ce billet supérieur a été séparé des suivants par l'ensemble permier galet 3, second et troisième galet 6 et 9. Dès que le billet supérieur 2A est pris entre le galet moteur 28 et le sixième galet 29, un détecteur électro-optique 31 commande le débrayage du cinquième galet fou 17 et les premier et second galets 3 et 6 continuent à tourner en roue libre sur les premier et second arbres 5 et 8 par la friction exercée entre ces galets 3 et 6 et le billet supérieur entraîné vers l'avant.The drive shaft 23 also carries a second drive roller 28 and under this roller and in contact with it is placed a sixth roller 29 mounted to rotate freely on a shaft 30. These two rollers: drive roller 28 and sixth roller 29 constitute a means driving the upper ticket 2A of the stack 2 when this upper ticket has been separated from the following by the first roller 3, second and third roller 6 and 9 assembly. As soon as the upper ticket 2A is caught between the drive roller 28 and the sixth roller 29, an electro-optical detector 31 controls the disengagement of the fifth idler roller 17 and the first and second rollers 3 and 6 continue to coast on the first and second shafts 5 and 8 by the friction exerted between these rollers 3 and 6 and the upper ticket driven forward.

Une connexion 39 relie le détecteur 31 pour commander l'électroaimant 21.A connection 39 connects the detector 31 to control the electromagnet 21.

Lors du passage du billet supérieur 2A entre les second et troisième galets 6 et 9, le troisième galet 9 est légèrement entraîné en rotation par la friction entre ce galet et le billet mais sa rotation n'est que de quelque degrés car elle est stoppée par le dispositif décrit ci-après :During the passage of the upper banknote 2A between the second and third rollers 6 and 9, the third roller 9 is slightly driven in rotation by the friction between this roller and the banknote but its rotation is only a few degrees because it is stopped by the device described below:

Un plateau 32 est monté en roue libre sur l'arbre fixe 10 de manière que sa liberté de rotation sur l'arbre 10 soit dans le même sens que la liberté de rotation des premier et second galets 3 et 6, c'est-à-dire dans le sens des flèches 24 et 27. Ce plateau 32 comporte une échancrure périphérique 33 et un ergot 34 situé également au voisinage de la périphérie mais sur un autre rayon du plateau. Le troisième galet 9 comporte, fixé perpendiculairement et au voisinage de sa périphérie, un téton 35 qui pénètre dans l'échancrure 33 du plateau 32 en lui laissant un débattement de quelques degrés. Un ressort de rappel 36 relie le téton 35 à l'ergot 34. Ainsi, lors du passage d'un billet entre les second et troisième galets 6 et 9, le troisième galet 9 est entraîné en rotation par friction du billet contre ce galet jusqu'à ce que le téton 35 vienne buter contre le bord 37 de l'échancrure 33. Là, le troisième galet 9 est bloqué puisque la roue libre du plateau 32 ne permet la rotation de ce plateau que dans le sens inverse (sens des flèches 24 et 27). Lorsque le billet supérieur a échappé d'entre les deux galets 6 et 9, le ressort de rappel 36 ramène le troisième galet 9 en arrière, et lorsque le téton 35 vient buter dans ce mouvement arrière contre l'autre bord 38 de l'échancrure 33, le plateau 32 subit une légère rotation ce qui permet de décaler petit à petit le point de passage des billets sur le troisième galet 9 et donc de répartir également son usure qui est ainsi très faible.A plate 32 is mounted freewheeling on the fixed shaft 10 so that its freedom of rotation on the shaft 10 is in the same direction as the freedom of rotation of the first and second rollers 3 and 6, that is to say say in the direction of the arrows 24 and 27. This plate 32 comprises a peripheral notch 33 and a lug 34 also located in the vicinity of the periphery but on another radius of the plate. The third roller 9 comprises, fixed perpendicularly and in the vicinity of its periphery, a stud 35 which penetrates into the notch 33 of the plate 32 while leaving it a movement of a few degrees. A return spring 36 connects the stud 35 to the lug 34. Thus, during the passage of a ticket between the second and third rollers 6 and 9, the third roller 9 is driven in rotation by friction of the ticket against this roller until 'so that the stud 35 abuts against the edge 37 of the notch 33. There, the third roller 9 is blocked since the free wheel of the plate 32 allows the rotation of this plate only in the opposite direction (direction of the arrows 24 and 27). When the upper ticket has escaped between the two rollers 6 and 9, the return spring 36 brings the third roller 9 back, and when the stud 35 abuts in this rearward movement against the other edge 38 of the notch 33, the plate 32 undergoes a slight rotation which makes it possible to gradually shift the point of passage of the banknotes on the third roller 9 and therefore to also distribute its wear which is thus very low.

Les premier et second galets 3 et 6 sont revêtus d'un caoutchouc ayant un bon coefficient de frottement, supérieur à celui dont est revêtu le troisième galet 9.The first and second rollers 3 and 6 are coated with a rubber having a good coefficient of friction, greater than that with which the third roller 9 is coated.

La faible rotation en avant du troisième galet 9 permet de bien engager le billet supérieur tandis que son blocage au bout de quelques degrés arrête le billet situé en dessous s'il avait un peu avancé. Le rappel en arrière du galet 9 une fois que le billet supérieur a échappé d'entre les galets 6 et 9 permet de repousser vers l'arrière un tel billet.The low rotation forward of the third roller 9 makes it possible to properly engage the upper ticket while its blocking after a few degrees stops the ticket located below if it had advanced a little. The return behind the roller 9 once the upper ticket has escaped between the rollers 6 and 9 makes it possible to push back such a ticket.

L'exemple décrit l'a été dans le cas d'un extracteur de billets, pour lequel l'invention est particulièrement intéressante, mais l'invention s'applique évidemment à tout dispositif de séparation et d'extraction de feuilles.The example described was in the case of a banknote extractor, for which the invention is particularly advantageous, but the invention obviously applies to any device for separating and extracting sheets.

Claims (3)

1. A device for separating and extracting stacked sheets (2) one by one, comprising a first roller (3) in contact with the front part of the upper sheet of the stack, which roller removes the sheets from the stack, a second (6) and third roller (9) arranged facing the front end of the stack of sheets and ensuring the release one by one of the removed sheets, driving means (28, 29) situated downstream of the second (6) and third roller (9) with respect to the first roller (3) and ensuring the transfer of the sheets after their passage through the second (6) and third rollers (9), motorisation means ensuring the operation of the driving means (28, 29) and of the first (3) and second rollers (6), said device being characterized in that the third roller (9), which is free in rotation, is provided with means which urge it to a rest position when it is not driven by a sheet, and with means limiting angularly its rotation in the direction of passage of a sheet which is advanced by the second roller (6) or by the driving means (28, 29).
2. A device according to claim 1, characterized in that the means urging the third roller (9) to a rest position and limiting angularly its rotation are mounted on a free-wheel mechanism permitting their rotation in the inverse direction of that of the sheet extraction.
3. A device according to claim 2, characterized in that the means urging the third roller into a rest position and limiting angularly its rotation comprise a turning plate (32) which is mounted with the free wheel mechanism on an axis (10) carrying the free-wheeling third roller (9), a stud (35) which is fixed at the flank of the third roller (9) opposite the turning plate and is loosely engaged in a slot (33) provided in the periphery of the plate (32), and a return spring (36) which is fixed between the stud (35) and the turning plate (32).
EP80101795A 1979-04-10 1980-04-03 Device for the individual separation and removal of single sheets from a stack Expired EP0017234B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7909035A FR2453809A1 (en) 1979-04-10 1979-04-10 METHOD AND DEVICE FOR SEPARATING AND EXTRACTING ONE TO ONE OF STACKED SHEETS
FR7909035 1979-04-10

Publications (2)

Publication Number Publication Date
EP0017234A1 EP0017234A1 (en) 1980-10-15
EP0017234B1 true EP0017234B1 (en) 1983-11-16

Family

ID=9224163

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80101795A Expired EP0017234B1 (en) 1979-04-10 1980-04-03 Device for the individual separation and removal of single sheets from a stack

Country Status (10)

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US (1) US4316606A (en)
EP (1) EP0017234B1 (en)
JP (1) JPS5623136A (en)
CA (1) CA1132618A (en)
DE (1) DE3065581D1 (en)
DK (1) DK148080C (en)
ES (1) ES490387A0 (en)
FI (1) FI69437C (en)
FR (1) FR2453809A1 (en)
IE (1) IE49583B1 (en)

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FR2572907B1 (en) * 1984-11-13 1987-06-19 Bull Transac METHOD OF INVALIDATION OF VALUE DOCUMENTS AND THE DEVICE FOR CARRYING OUT THE METHOD
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US20150154822A1 (en) * 2013-12-02 2015-06-04 Chi-Ming Tsai Security Device for a Lottery Ticket Machine
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Also Published As

Publication number Publication date
IE49583B1 (en) 1985-10-30
DE3065581D1 (en) 1983-12-22
DK148080C (en) 1985-08-12
FI69437B (en) 1985-10-31
ES8102970A1 (en) 1981-02-16
EP0017234A1 (en) 1980-10-15
FR2453809A1 (en) 1980-11-07
DK148080B (en) 1985-02-25
DK152180A (en) 1980-10-11
FI69437C (en) 1986-02-10
IE800715L (en) 1980-10-10
ES490387A0 (en) 1981-02-16
JPS5623136A (en) 1981-03-04
FR2453809B1 (en) 1982-07-02
FI801107A (en) 1980-10-11
CA1132618A (en) 1982-09-28
US4316606A (en) 1982-02-23

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