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EP0352694B1 - Buckling folder - Google Patents

Buckling folder Download PDF

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Publication number
EP0352694B1
EP0352694B1 EP89113564A EP89113564A EP0352694B1 EP 0352694 B1 EP0352694 B1 EP 0352694B1 EP 89113564 A EP89113564 A EP 89113564A EP 89113564 A EP89113564 A EP 89113564A EP 0352694 B1 EP0352694 B1 EP 0352694B1
Authority
EP
European Patent Office
Prior art keywords
pocket
pockets
folder
rollers
plates
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 - Lifetime
Application number
EP89113564A
Other languages
German (de)
French (fr)
Other versions
EP0352694A1 (en
Inventor
Marek Krasuski
Bernard Prugnolle
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.)
Quadient Technologies France SA
Original Assignee
Neopost Technologies SA
Alcatel Satman SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Neopost Technologies SA, Alcatel Satman SA filed Critical Neopost Technologies SA
Publication of EP0352694A1 publication Critical patent/EP0352694A1/en
Application granted granted Critical
Publication of EP0352694B1 publication Critical patent/EP0352694B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/14—Buckling folders
    • B65H45/142—Pocket-type folders
    • B65H45/144—Pockets or stops therefor

Definitions

  • the present invention relates to so-called pocket folders, intended to ensure automatic folding of documents to be placed in envelopes.
  • Pocket folders are as such known and already widely used in automatic mail processing installations. The most common are with two pockets and ensure that the documents received are folded in three, by forming two folds on the documents.
  • each of the pockets cooperates with three folding rollers.
  • One of these three rollers, called the first roller, is tangent to the other two said second rollers.
  • the pocket in question has an open end for accessing documents, mounted between the two second rollers and facing the first.
  • one of the second rollers and the first roller ensure the introduction and advance of the document to receive a fold in the pocket considered.
  • the document is blocked in this pocket, while the advance which is always printed on it causes the formation of a loop in front of the access end of the pocket.
  • the loop is taken and clamped between the first and the other second roll which then produce the desired fold and eject the document thus folded.
  • Some of these folders are with their two parallel pockets.
  • a set of five folding rollers is then associated with the two pockets, which extend on the same side of the set of rollers.
  • One of the second rollers mentioned above for each pocket is then used in common for the two pockets. It is used to make the first fold for the first pocket receiving the document and to introduce the document, with its first fold at the top, into the second pocket.
  • the pockets themselves are formed by some sort of flat cases or cassettes.
  • One of the small sides of the cassette which is open, defines the access end of the documents in the pocket. Opposite the access end, the small rear wall and / or an internal stop blocks the advance of the document in the cassette, for the formation of the loop in front of the pocket and of the resulting fold.
  • each pocket is made adjustable relative to the access opening. It is also possible to make only one fold.
  • One of the pockets then has its adjustable or retractable inner stop and then replaced by the small rear wall while the other pocket has a closure element for its access end or is removable in the folder and then replaced by a guide deflector.
  • pocket folders in the form of flat cases or cassettes are widely sold.
  • the main drawback of these pocket folders is the difficulty of removing any jams. Such jams occur in particular when documents to be folded together have different dimensional characteristics. Clearing jams is inconvenient due to difficulties accessing the document path.
  • Document US-A-4619101 also discloses a folder with two pockets arranged in a V facing the set of folding rollers.
  • This folder is made compact and low noise in operation for use as a machine In addition, it is designed to allow access to the inside of his pockets when the machine is opened, to remove jams.
  • this folder is formed in a two-part casing defining a base and a cover.
  • the cover is pivotally connected to the back of the base to open the folder.
  • the set of folding rollers receives the sheets to be folded from an inlet provided in the cover and delivers them folded on an outlet provided in the base.
  • a first of the two pockets is defined in the cover by an upper wall of the cover and a parallel lower wall which is pivotally connected to the cover.
  • the second pocket is defined in the base by a lower wall of the base and a parallel upper wall which is pivotally connected to the base.
  • the upper wall of the cover for the first pocket and the lower wall of the base for the second pocket are molded with the cover and the base.
  • the bottom wall of the first pocket has its rear edge, distant from all of the rollers, articulated on the cover; it opens naturally when the cover is lifted.
  • the upper wall of the second pocket has its front edge, close to the set of rollers, which is articulated on the base; its rear edge rests on a base stop, it can be opened by hand when the cover is lifted.
  • this upper wall of the second pocket carries separating means for holding the lower wall of the first pocket in place when the cover is closed.
  • the folder according to this document partially solves the problems of cleaning in the pockets, although access to the interior of the second pocket remains inconvenient. However, it does not allow wide access all the way to the documents.
  • the casing which makes it possible to obtain opening pockets is of complex construction. Furthermore, it makes access to the elements inconvenient, during assembly and for maintenance, it limits the number of added elements which it can receive and thereby constitutes a limitation to the design of the folder itself and to its use in an integrated and fully automatic folding and insertion machine.
  • the object of the present invention is to avoid the above drawbacks, by significantly improving access to the interior of the folder and by making it easier to carry out.
  • the pocket folder in which said first and second pockets are each defined by a fixed wall and a wall facing pivotally, for opening the pockets when the upper part of the folding machine, is characterized in that said first and second pockets are formed, substantially identically and independently of the chassis, each by a pair of plates coupled to each other on a terminal axis of articulation, opposite said access to the pocket, and in that it further comprises, for each pocket, first means of fixing to the chassis of one of the plates forming said fixed wall, second elastic means urging the other plate forming said pivoting wall against the fixed wall, and third separating means ensuring that the faces opposite the pair of plates are not joined.
  • Each pocket also advantageously comprises a set of projecting rollers inside the pocket, which are carried by the plates and come into contact with each other in the pocket.
  • Each pocket is further equipped with a pivoting finger mounted as an obstacle erasable by the document in the pocket considered, this finger being carried by the fixed plate and coupled to a document detecting element in the pocket, which is outside said pocket. poached.
  • the pocket folder shown is designated by the reference 1. It comprises two folding pockets 2 and 3 with which is associated a set 4 of folding rollers.
  • the two pockets 2 and 3 are arranged along the branches of a truncated V on the assembly 4 of folding rollers then with four rollers.
  • the two pockets 2 and 3 and the assembly 4 of folding rollers are mounted inside a chassis formed in two parts, one upper 5A and the other lower 5B.
  • Pocket 2 is mounted in the upper part 5A and the pocket 3 in the lower part 5B.
  • the two pockets 2 and 3 are similar to each other. Each of them forms a sort of flat cassette into which the document to be folded partially fits.
  • Each of the pockets consists of a pair of plates coupled to each other, receiving between them the document to be folded. These plates are designated by the references 20 and 21 for the pocket 2 and by the references 30 and 31 for the pocket 3.
  • the plates 20 and 21 are coupled to each other on a terminal hinge pin 22.
  • the pocket 2 When the pocket 2 is mounted in the chassis one of its plates is fixed in the upper part 5A of the chassis, the on the other hand, another plate remains pivoting on the hinge axis 22.
  • This hinge axis defines the bottom of the pocket opposite its access 23 for documents which is adjacent to all of the rollers.
  • the pivoting plate is the plate 20 extending from the side of the lower part 5B of the chassis in which the pocket 2 concerned is not mounted; the fixed plate is plate 21.
  • the pair of plates 30 and 31 for the pocket 3 is mounted in a similar manner to the pair of plates 20 and 21, but in the lower part 5B of the chassis.
  • the plate 30 extending from the side of the upper part 5A of the chassis is pivotable about an axis 32 coupling the plates 30 and 31 at the end of the pocket 3 opposite its access to documents 33.
  • the plate 31 is fixed in the lower part 5B of the chassis.
  • the set 4 of folding rollers has its four rollers bearing the references 40 to 43.
  • the roller 40 has the other three rollers 41, 42 and 43 which are tangent to it on its periphery.
  • the access 23 of the pocket 2 is interposed between the peripheral rollers 41 and 42 and is opposite the roller 40.
  • the access 33 of the pocket 3 is interposed between the peripheral rolls 42 and 43 and is also opposite the roller 40 .
  • Two of these four rollers are mounted in the upper part 5A of the chassis, here the two rollers 40 and 41; the other two rollers 42 and 43 are mounted in the lower part 5B.
  • a path 10 for the documents to be folded is provided in the upper part 5A of the chassis.
  • An exit path 11 of folded documents is defined between the lower part 5B and the upper part 5A of the chassis.
  • the document supply path 10 is supplied from a document input 12; this entry is equipped with a serving shelf transferring successive separate documents to be folded or in store and associated destacker also transferring successive separate documents to be folded.
  • This feed path 10 comprises means 13 for driving the received documents, it guides them between the rollers 40 and 41.
  • the outlet path 11 includes the rollers 40 and 43 which deliver the folded documents and drive means 14 folded documents up to an outlet 15 defined at the front of the folder, on the terminal part of the lower part 5B of the chassis.
  • the drive means 13 and 14 on the tracks 10 and 11 are pairs of rollers, or the like, under pressure. They are mounted in the upper part 5A of the chassis for those relating to the path 10. They are mounted, like the rollers 40 and 43, opposite in the upper part 5A and the lower part 5B of the chassis for those relating to the exit path 11 which is defined between these two parts.
  • the upper part 5A of the chassis is articulated on an end axis, noted 5, of the lower part 5B for its opening.
  • This axis 5 is parallel to the articulation axes 22, 32 of the pivoting plates of the pockets. It extends substantially between these axes, opposite the outlet 15 on the folder.
  • the upper part 5A of the chassis is also lockable on the lower part 5B of the chassis by any suitable means, not shown.
  • FIG. 1 The folding machine according to the invention illustrated closed in FIG. 1 is on the other hand illustrated open in FIG. 2, in order to bring out its advantages directly.
  • the opening of the folder is made by the pivoting according to arrow 5C of the upper part 5A of the frame around its axis 5.
  • This opening of the folder gives direct access to the exit path 11 of folded documents, which is itself open along its length. It also gives very easy access to the supply path 10, via the open lower face of the upper part 5A of the chassis.
  • the opening of the folder allows the opening of one and / or the other of the pockets to give free access to all the interior housing defined by each of them.
  • the arrow 20C translates the pivoting of the pivoting plate 20 around the axis 22 for the opening of the pocket 2.
  • the arrow 30C translates the same operation for the pocket 3.
  • FIG. 3 it can be seen that the pivoting plate 20 and the fixed plate 21 of the pocket 2 are coupled to one another on the articulation axis 22 provided for the pivoting plate 20.
  • the axis of articulation 22 is centered on the height of the pocket, at its rear end.
  • Both of the plates 20 and 21 have fixing lugs on the axis 22, such as 24, protruding on their inner face and in the vicinity of their rear edge. These legs have their projecting part of semi-circular profile; they maintain the plates on the axis 22 and contribute to the slight separation of the plates from one another.
  • the fixed plate 21 of the pocket 2 is also fixed using screws such as 25 on the upper part 5A of the chassis to avoid any possible movement of this plate around the axis 22.
  • the pivoting plate 20 is it is urged elastically towards the plate 21, by a spring 26, fixed on the one hand on the edge of the plate 20 and on the other hand on the upper part 5A of the chassis.
  • One of the two plates 20 and 21, here the plate 21, has in its end portion opposite the axis 22, a lateral heel 21A which ensures the desired spacing between the plates 20 and 21, against the action of the spring 26.
  • a pair of legs with a U-shaped branch can ensure, at the same time, the fixing of the plate 21 on the upper part of the chassis and the non-abutment of the faces opposite the plates 20 and 21 against the action of the elastic means urging the pivoting plate against the fixed plate.
  • the plates 20 and 21 each have in their middle portion a window 27A or 27B depending on the plate considered.
  • a set of rollers 28A is mounted on the plate 20 in its window 27A and another set of rollers 28B is mounted on the plate 21 in its own window 27B.
  • the rollers 28B carried by the fixed plate 21 are slightly projecting on the inner face of this plate; the rollers 28A are flush with the pocket on the inside of the pivoting plate.
  • These rollers 28A and 28B correspond to be a vis-à-vis on the plates and come into contact against each other, under slight pressure inside the pocket 2. They ensure, when folding several documents together , a tightening without sliding of these documents against each other.
  • This tightening is used to allow the retention of multiple documents to be folded together and in particular of small format documents to be folded with larger documents, and thus avoid causing possible additional jams.
  • These projecting rollers inside the pocket 2 are advantageously closer to the access 23 than to the hinge pin 22 of the rear end.
  • a pivoting finger 29 is mounted on the fixed plate 21, in an erasable obstacle by the simple advance of the documents to be folded into the pocket 2.
  • the finger 29 extends, through the window 27B of the plate 21, or another individual window , as far as the corresponding window of the pivoting plate 20, when it is in obstacle inside the pocket. He fades into his home from the plate 21, as shown diagrammatically in dotted lines, when a document to be folded is present in the pocket.
  • This finger 29 is coupled to a lever 29A which it actuates.
  • the lever extends over the outside of the pocket 2. It serves as a document presence detector in the pocket 2. It is therefore associated with a jam detection circuit in the pocket 2, not shown, which comprises a pair of cells assigned to detecting the position of the lever and therefore of the pivoting finger 29, a time delay and a logic decision circuit.
  • the time delay is triggered by the pair of cells as soon as finger 29 is deleted; it is chosen to translate the maximum time interval of presence in the pocket of a normally discharged document, which does not give rise to a jam.
  • the return to obstacle of the pivoting finger cancels the triggering of the delay.
  • the pocket 3 is similarly equipped. Its plates 30 and 31 have lugs 34 ensuring their maintenance on the hinge pin 32.
  • the fixed plate 31 is held by means not shown on the lower part 5B of the chassis.
  • a spring urges the pivoting plate 30 towards the fixed plate 31.
  • a lateral heel 30A, here on the plate 30, or another means ensures with the lugs 34 the desired spacing of the plates 30 and 31.
  • These plates have windows 37A, 37B in which rollers 38A, 38B are mounted in contact with one another in the pocket.
  • the roller 38B is protruding in the pocket, the other 38A just flush with the plate 30.
  • a pivoting finger 39 mounted on the fixed plate 31 forms an erasable obstable in the pocket 3.
  • a lever 39A actuated by the finger 39 allows detection presence of document in pocket 3 and controls a jam detection circuit, not shown, for this pocket 3 similar to that assigned to pocket 2.
  • each pocket can be equipped with an individual or common photoelectric detector 29 ′, 39 ′, as shown diagrammatically in FIG. 1.
  • the emitter and detector cells of each individual detector 29 ′, 39 ′ can be mounted on the plates of each pocket, or on the outside of the plates of each pocket being coupled to one another, in the absence of a document in the pocket, through suitable windows in its plates.
  • the transmitting cell and the receiving cell of the common detector can be mounted on the fixed plates 21, 31 of either of the pockets 2, 3; they are coupled through suitable windows of the pivoting plates 20 and 30 of the pockets 2, 3 when the folder is closed and in the absence of a document in one of the two pockets.
  • At least one of the two plates of each pocket can be equipped with a projecting edge on its inner face, on each lateral side of the pocket, which laterally closes the pocket when the folder is closed.
  • These edges can play the role of the aforementioned heels for the desired spacing between the fixed plate and the pivoting plate, or can come to project outwardly on the plate opposite that which carries them.
  • a shutter 53 is mounted on the side of the access 23 of the pocket 2. It is pivotable between an open position, shown in dotted lines, and a closed position shown in solid lines. This flap, depending on its position, allows the pocket 2 of the folder to be used or not.
  • a stop 62 is mounted in the pocket 3. It forms an obstacle inside the pocket 3, towards its end close to the hinge pin 32. It is carried by the fixed plate 31 of this pocket. This stop is adjustable relative to the access 33 of the pocket 3 according to the arrow 63 and / or is retractable on the fixed plate.
  • each of the pockets can be equipped with a pivoting shutter for closing off its access, such as the shutter 53 and with a stop such as 62.
  • An individual or common external control is coupled to the shutter 53 of the pocket 2 and at the stop 62 of the pocket 3 for putting the shutter in its desired position depending on whether or not it is desired to use the pocket 2 and putting the stop at its corresponding suitable position.
  • the folder thus makes it possible to fold the documents it receives in three, by using its two pockets, or a folding in half of the documents, by using only one of its two pockets, in this case pocket 3 .
  • FIG. 4 corresponds to FIG. 3 and shows the folder with the upper part 5A of its chassis open on the lower part 5B, by pivoting along the arrow 5C around the axis 5.
  • the cables 50 and 60 fixed on the pivoting plates pockets 2 and 3 then caused the opening of the pockets with the opening of the folder according to arrow 5C.
  • the arrow 20C translates the pivoting of the pivoting plate 20 around the axis 22 which has been carried out.
  • An arrow 30C translates the pivoting of the pivoting plate 30 around the axis 32, for the pocket 3.
  • the pivoting plate 30 has been truncated so as not to extend up to to the folding rollers 42 and 43.
  • a small auxiliary plate 64 replaces the truncated end part of the pivoting plate 30.
  • This auxiliary plate 64 is fixedly mounted in the lower part 5B of the chassis; it simply defines the access to the pocket 3, with the facing portion of the fixed plate 31.
  • the pivoting plate 30, with a truncated end portion thus freely escapes the folding roller 42 when the folder is opened and the resulting opening of the pocket 3.
  • the plates 20, 21 and 30, 31 have been made of sufficient thickness to allow the mounting of the elements which equip each of the pockets and which these plates carry.
  • the end portions of the plates 20, 21 and 31 and of the counter plate 64 which define the accesses 23, 33 of the pockets, are made of less thickness so that their outer faces escape the folding rollers 41, 42 and 42, 43 and allow good interposition of accesses 23 and 33 of these pockets between these rollers.
  • a motor 7 drives the folding rollers 40-43 and the rollers or rollers on the supply and exit paths 10 of the folder.
  • This motor 7 is coupled to the roller 43 which itself drives by friction, or a coupling by toothed gears, the roller 40, when the folder is closed according to FIG. 3 and put into operation.
  • This roller 40 in turn identically drives the rollers 41 and 42.
  • the operation of the folder is not modified by the particular constitution of its set of rollers mounted partly in the upper part of the chassis and for the other part in the lower part of the chassis, nor by the particular constitution of its pockets.
  • the rollers 40 and 41 drive the document to be folded and introduce it into the open pocket 2; the advance of the document into the pocket is blocked by the tabs 24 at the rear of the pocket or the internal stop that it may include, for the formation of a loop in front of the access 23; the taking of this loop between the rollers 40 and 42 gives rise to the first folding and ensures the introduction of the document into the pocket 3, with this first fold in head, while the document emerges from the pocket 2 and remains driven by the rollers 40, 41.
  • the second fold is obtained in the same way and the document is discharged folded in three by rollers 40 and 43 on the exit path.
  • the pivoting finger in each pocket disappears with the presence of the document at its level and puts itself in obstacle when the document is withdrawn at its level.
  • the protruding rollers in the pocket upstream of the finger maintain a clamping of the documents in the pocket during their advance and their withdrawal from the pocket. Excessive holding in time of this pivoting finger in the erased position indicates jamming; it gives rise to the stop of the folder. The removal of such a jam is then carried out quickly and simply by opening the folder.

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  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Making Paper Articles (AREA)

Description

La présente invention porte sur les plieuses dites à poches, destinées à assurer le pliage automatique de documents à mettre sous enveloppes.The present invention relates to so-called pocket folders, intended to ensure automatic folding of documents to be placed in envelopes.

Les plieuses à poches sont en tant que telles connues et déjà largement utilisées dans les installations de traitement automatique de courrier. Les plus courantes sont à deux poches et assurent la pliage en trois des documents reçus, par formation de deux plis sur les documents.Pocket folders are as such known and already widely used in automatic mail processing installations. The most common are with two pockets and ensure that the documents received are folded in three, by forming two folds on the documents.

Pour la formation de chaque pli, chacune des poches coopère avec trois rouleaux de pliage. L'un de ces trois rouleaux, dit premier rouleau, est tangent aux deux autres dits seconds rouleaux. La poche considérée a une extrémité ouverte d'accès des documents, montée entre les deux seconds rouleaux et face au premier.For the formation of each fold, each of the pockets cooperates with three folding rollers. One of these three rollers, called the first roller, is tangent to the other two said second rollers. The pocket in question has an open end for accessing documents, mounted between the two second rollers and facing the first.

En fonctionnement, l'un des seconds rouleaux et le premier rouleau assurent l'introduction et l'avance du document devant recevoir un pli dans la poche considérée. Le document vient se bloquer dans cette poche, tandis que l'avance qui lui est toujours imprimée provoque la formation d'une boucle devant l'extrémité d'accès de la poche. La boucle est prise et enserrée entre le premier et l'autre second rouleau qui réalisent alors le pli souhaité et éjectent le document ainsi plié.In operation, one of the second rollers and the first roller ensure the introduction and advance of the document to receive a fold in the pocket considered. The document is blocked in this pocket, while the advance which is always printed on it causes the formation of a loop in front of the access end of the pocket. The loop is taken and clamped between the first and the other second roll which then produce the desired fold and eject the document thus folded.

Certaines de ces plieuses sont avec leurs deux poches parallèles. Un ensemble de cinq rouleaux de pliage est alors associé aux deux poches, qui s'étendent d'un même côté de l'ensemble des rouleaux. L'un des seconds rouleaux précités pour chaque poche est alors utilisé en commun pour les deux poches. Il sert à réaliser le premier pli pour la première poche recevant le document et à introduire le document, avec son premier pli en tête, dans la deuxième poche.Some of these folders are with their two parallel pockets. A set of five folding rollers is then associated with the two pockets, which extend on the same side of the set of rollers. One of the second rollers mentioned above for each pocket is then used in common for the two pockets. It is used to make the first fold for the first pocket receiving the document and to introduce the document, with its first fold at the top, into the second pocket.

D'autres plieuses sont avec leurs deux poches non parallèles, disposées selon les branches d'un V tronqué, auxquelles est alors associé un ensemble de quatre rouleaux de pliage. Le premier rouleau précité pour chaque poche est utilisé en commun pour les deux poches. Il a les trois autres rouleaux tangents sur sa périphérie, qui sont les seconds rouleaux précités pour chaque poche, avec l'un d'eux utilisé en commun pour les deux poches. Ce premier rouleau sert alors en commun à introduire et avancer le document dans la première poche, à réaliser le premier pli pour cette première poche et introduire le document avec son premier pli en tête dans la deuxième poche, et finalement à réaliser le deuxième pli pour cette deuxième poche et éjecter le document plié en trois. Ces plieuses à poches en V sont d'encombrement longitudinal moindre que celui des plieuses à poches parallèles.Other folding machines are with their two non-parallel pockets, arranged along the branches of a truncated V, with which is then associated a set of four folding rollers. The first roll mentioned above for each pocket is used in common for the two pockets. It has the other three tangent rollers on its periphery, which are the aforementioned second rollers for each pocket, with one of them used in common for both pockets. This first roller is then used jointly to introduce and advance the document in the first pocket, to make the first fold for this first pocket and introduce the document with its first fold in the head in the second pocket, and finally to make the second fold for this second pocket and eject the document folded in three. These V-folder benders are less longitudinal in size than that of parallel pocket benders.

Dans les plieuses à poches, les poches elles-mêmes sont formées par des sortes de boîtiers plats ou cassettes.In pocket folders, the pockets themselves are formed by some sort of flat cases or cassettes.

L'une des petites faces de la cassette, qui est ouverte, définit l'extrémité d'accès des documents dans la poche. A l'opposé de l'extrémité d'accès, la petite paroi arrière et/ou une butée intérieure bloque l'avance du document dans la cassette, pour la formation de la boucle devant la poche et du pli qui en résulte.One of the small sides of the cassette, which is open, defines the access end of the documents in the pocket. Opposite the access end, the small rear wall and / or an internal stop blocks the advance of the document in the cassette, for the formation of the loop in front of the pocket and of the resulting fold.

Une modification de la longueur des pliages à réaliser, donc de la position de chaque pli sur le document est possible dans ces plieuses. A cet effet, la butée intérieure de chaque poche est rendu réglable par rapport à l'ouverture d'accès. Il est également possible de ne réaliser qu'un seul pli. L'une des poches a alors sa butée intérieure réglable ou escamotable et alors substituée par la petite paroi arrière tandis que l'autre poche a un élément d'obturation de son extrémité d'accès ou est amovible dans la plieuse et alors remplacée par un déflecteur de guidage.A modification of the length of the folds to be made, therefore of the position of each fold on the document is possible in these folders. For this purpose, the inner stop of each pocket is made adjustable relative to the access opening. It is also possible to make only one fold. One of the pockets then has its adjustable or retractable inner stop and then replaced by the small rear wall while the other pocket has a closure element for its access end or is removable in the folder and then replaced by a guide deflector.

Ces plieuses à poches sous forme de boîtiers plats ou cassettes sont largement commercialisées. En fonctionnement, le principal inconvénient de ces plieuses à poches réside dans la difficulté de supprimer d'éventuels bourrages. De tels bourrages ont lieu en particulier lorsque des documents à plier ensemble sont de caractéristique dimensionnelles différentes. La suppression des bourrages est peu commode du fait des difficultés d'accès au chemin des documents.These pocket folders in the form of flat cases or cassettes are widely sold. In operation, the main drawback of these pocket folders is the difficulty of removing any jams. Such jams occur in particular when documents to be folded together have different dimensional characteristics. Clearing jams is inconvenient due to difficulties accessing the document path.

On connaît également par le document US-A-4619101, une plieuse à deux poches disposées en V en regard de l'ensemble de rouleaux de pliage. Cette plieuse est rendue compacte et à faible niveau de bruit en fonctionnement pour son utilisation en tant que machine de bureau, De plus, elle est prévue pour permettre d'avoir accès à l'intérieur de ses poches quand on ouvre la machine, pour la suppression des bourrages.Document US-A-4619101 also discloses a folder with two pockets arranged in a V facing the set of folding rollers. This folder is made compact and low noise in operation for use as a machine In addition, it is designed to allow access to the inside of his pockets when the machine is opened, to remove jams.

Pour répondre à ces buts, cette plieuse est formée dans un carter en deux parties définissant une base et un couvercle. Le couvercle est relié de manière pivotante sur l'arrière de la base pour l'ouverture de la plieuse. L'ensemble des rouleaux de pliage reçoit les feuilles à plier d'une entrée prévue dans le couvercle et les délivre pliées sur une sortie prévue dans la base. Dans cette plieuse, une première des deux poches est définie dans le couvercle par une paroi supérieure du couvercle et une paroi inférieure parallèle qui est connectée de manière pivotante au couvercle. La deuxième poche est définie dans la base par une paroi inférieure de la base et une paroi supérieure parallèle qui est connectée de manière pivotante à la base.To meet these goals, this folder is formed in a two-part casing defining a base and a cover. The cover is pivotally connected to the back of the base to open the folder. The set of folding rollers receives the sheets to be folded from an inlet provided in the cover and delivers them folded on an outlet provided in the base. In this folder, a first of the two pockets is defined in the cover by an upper wall of the cover and a parallel lower wall which is pivotally connected to the cover. The second pocket is defined in the base by a lower wall of the base and a parallel upper wall which is pivotally connected to the base.

La paroi supérieure du couvercle pour la première poche et la paroi inférieure de la base pour la deuxième poche sont issues de moulage avec le couvercle et la base. La paroi inférieure de la première poche a son bord arrière, distant de l'ensemble des rouleaux, articulé sur le couvercle ; elle s'ouvre naturellement quand le couvercle est soulevé. La paroi supérieure de la deuxième poche a son bord avant, proche de l'ensemble des rouleaux, qui est articulé sur la base ; son bord arrière repose sur une butée de la base, elle peut s'ouvrir à la main quand le couvercle est soulevé. De plus cette paroi supérieure de la deuxième poche porte des moyens séparateurs de maintien en place de la paroi inférieure de la première poche quand le couvercle est fermé.The upper wall of the cover for the first pocket and the lower wall of the base for the second pocket are molded with the cover and the base. The bottom wall of the first pocket has its rear edge, distant from all of the rollers, articulated on the cover; it opens naturally when the cover is lifted. The upper wall of the second pocket has its front edge, close to the set of rollers, which is articulated on the base; its rear edge rests on a base stop, it can be opened by hand when the cover is lifted. In addition, this upper wall of the second pocket carries separating means for holding the lower wall of the first pocket in place when the cover is closed.

La plieuse selon ce document résoud en partie les problèmes de débourrage au niveau des poches, encore que l'accès à l'intérieur de la deuxième poche reste peu commode. Elle ne permet par contre pas d'avoir un large accès sur tout le chemin des documents. En outre, le carter qui permet l'obtention de poches ouvrantes est de réalisation complexe. Par ailleurs il rend peu commode l'accès aux éléments, lors du montage et pour la maintenance, il limite le nombre d'éléments rapportés qu'il peut recevoir et par là-même constitue une limitation à la conception de la plieuse elle-même et à son utilisation dans une machine intégrée et entièrement automatique de pliage et d'insertion.The folder according to this document partially solves the problems of cleaning in the pockets, although access to the interior of the second pocket remains inconvenient. However, it does not allow wide access all the way to the documents. In addition, the casing which makes it possible to obtain opening pockets is of complex construction. Furthermore, it makes access to the elements inconvenient, during assembly and for maintenance, it limits the number of added elements which it can receive and thereby constitutes a limitation to the design of the folder itself and to its use in an integrated and fully automatic folding and insertion machine.

La présente invention a pour but d'éviter les inconvénients ci-dessus, en améliorant de manière importante l'accès à l'intérieur de la plieuse et en rendant plus aisée sa réalisation.The object of the present invention is to avoid the above drawbacks, by significantly improving access to the interior of the folder and by making it easier to carry out.

Elle a donc pour objet une plieuse à poches constituée en deux parties, l'une dite partie inférieure et l'autre dite partie supérieure montée articulée sur la partie inférieure pour son ouverture, présentant une entrée de feuilles à plier sur la partie supérieure et une sortie de feuilles pliées sur la partie inférieure, et comportant:

  • un ensemble de rouleaux de pliage recevant les feuilles à plier de ladite entrée et les délivrant pliées sur un chemin de sortie aboutissant à ladite sortie,
  • une première poche dans la partie supérieure et une deuxième poche dans la partie inférieure, présentant chacune un accès pour les feuilles, adjacent audit ensemble de rouleaux,
ladite plieuse étant caractérisée en ce qu'elle est constituée sur un châssis en deux parties définissant ladite partie supérieure et ladite partie inférieure de la plieuse et en ce que ledit ensemble de rouleaux est monté pour une partie desdits rouleaux dans la partie supérieure du châssis et pour l'autre partie desdits rouleaux dans la partie inférieure du châssis, en définissant ledit chemin de sortie de feuilles pliées directement entre la partie inférieure et la partie supérieure du châssis, ledit ensemble de rouleaux se désassemblant pour être ouvert, ledit chemin de sortie s'ouvrant avec l'ouverture du châssis, et les poches s'ouvrant lors de l'ouverture du châssis.It therefore relates to a pocket folder made up of two parts, one called the lower part and the other called the upper part mounted articulated on the lower part for its opening, having an entry of sheets to be folded on the upper part and a exit of folded sheets on the lower part, and comprising:
  • a set of folding rollers receiving the sheets to be folded from said entry and delivering them folded on an exit path leading to said exit,
  • a first pocket in the upper part and a second pocket in the lower part, each having an access for the sheets, adjacent to said set of rollers,
said folder being characterized in that it is constituted on a frame in two parts defining said upper part and said lower part of the folder and in that said set of rollers is mounted for part of said rollers in the upper part of the frame and for the other part of said rollers in the lower part of the frame, by defining said exit path of folded sheets directly between the lower part and the upper part of the frame, said set of rollers disassembling to be opened, said exit path s opening with the opening of the frame, and the pockets opening when the opening of the frame.

En outre, la plieuse à poches, dans laquelle lesdites première et deuxième poches sont définies chacune par une paroi fixe et une paroi en vis-à-vis pivotante, pour l'ouverture des poches lors de l'ouverture de la partie supérieure de la plieuse, est caractérisée en ce que lesdites première et deuxième poches sont constituées, sensiblement à l'identique et indépendamment du châssis, chacune par une paire de plaques couplées l'une à l'autre sur un axe terminal d'articulation, à l'opposé dudit accès de la poche, et en ce qu'elle comporte, en outre, pour chaque poche, des premiers moyens de fixation sur le châssis de l'une des plaques formant ladite paroi fixe, des deuxièmes moyens élastiques sollicitant l'autre plaque formant ladite paroi pivotante contre la paroi fixe, et des troisièmes moyens séparateurs assurant le non accolement des faces en vis-à-vis de la paire de plaques.In addition, the pocket folder, in which said first and second pockets are each defined by a fixed wall and a wall facing pivotally, for opening the pockets when the upper part of the folding machine, is characterized in that said first and second pockets are formed, substantially identically and independently of the chassis, each by a pair of plates coupled to each other on a terminal axis of articulation, opposite said access to the pocket, and in that it further comprises, for each pocket, first means of fixing to the chassis of one of the plates forming said fixed wall, second elastic means urging the other plate forming said pivoting wall against the fixed wall, and third separating means ensuring that the faces opposite the pair of plates are not joined.

Chaque poche comporte aussi avantageusement un jeu de galets saillants à l'intérieur de la poche, qui sont portés par les plaques et viennent en contact les uns avec les autres dans la poche.Each pocket also advantageously comprises a set of projecting rollers inside the pocket, which are carried by the plates and come into contact with each other in the pocket.

Chaque poche est équipée, en outre, d'un doigt pivotant monté en obstacle effaçable par le document dans la poche considérée, ce doigt étant porté par la plaque fixe et couplé à un élément détecteur de document dans la poche, qui est extérieur à ladite poche.Each pocket is further equipped with a pivoting finger mounted as an obstacle erasable by the document in the pocket considered, this finger being carried by the fixed plate and coupled to a document detecting element in the pocket, which is outside said pocket. poached.

Les caractéristiques et avantages de la présente invention ressortiront de la description ci-après d'un exemple de réalisation illustré dans les dessins ci-annexés. Dans ces dessins :

  • la figure 1 est une vue de profil schématique d'une plieuse à poches selon la présente invention,
  • la figure 2 montre la plieuse selon la figure 1 mise en position d'ouverture,
  • la figure 3 est une vue schématique partiellement coupée montrant à échelle agrandie la partie à poches de la plieuse selon la figure 1,
  • la figure 4 correspond à la figure 3 pour la position d'ouverture de la plieuse à poches.
The characteristics and advantages of the present invention will emerge from the description below of an exemplary embodiment illustrated in the attached drawings. In these drawings:
  • FIG. 1 is a schematic profile view of a pocket folder according to the present invention,
  • FIG. 2 shows the folder according to FIG. 1 put in the open position,
  • FIG. 3 is a schematic partially cut view showing on an enlarged scale the pocket part of the folder according to FIG. 1,
  • Figure 4 corresponds to Figure 3 for the open position of the pocket folder.

La plieuse à poches représentée est désignée par la référence 1. Elle comporte deux poches de pliage 2 et 3 auxquelles est associé un ensemble 4 de rouleaux de pliage.The pocket folder shown is designated by the reference 1. It comprises two folding pockets 2 and 3 with which is associated a set 4 of folding rollers.

Dans cette plieuse les deux poches 2 et 3 sont disposées selon les branches d'un V tronqué sur l'ensemble 4 de rouleaux de pliage alors à quatre rouleaux.In this folding machine, the two pockets 2 and 3 are arranged along the branches of a truncated V on the assembly 4 of folding rollers then with four rollers.

Les deux poches 2 et 3 et l'ensemble 4 de rouleaux de pliage sont montés à l'intérieur d'un châssis formé en deux parties, l'une supérieure 5A et l'autre inférieure 5B. La poche 2 est montée dans la partie supérieure 5A et la poche 3 dans la partie inférieure 5B.The two pockets 2 and 3 and the assembly 4 of folding rollers are mounted inside a chassis formed in two parts, one upper 5A and the other lower 5B. Pocket 2 is mounted in the upper part 5A and the pocket 3 in the lower part 5B.

Les deux poches 2 et 3 sont analogues l'une à l'autre. Chacune d'elles forme une sorte de cassette plate dans laquelle rentre partiellement le document à plier.The two pockets 2 and 3 are similar to each other. Each of them forms a sort of flat cassette into which the document to be folded partially fits.

Chacune des poches est constituée par une paire de plaques couplées l'une à l'autre, recevant entre elles le document à plier. Ces plaques sont désignées par les références 20 et 21 pour la poche 2 et par les références 30 et 31 pour la poche 3.Each of the pockets consists of a pair of plates coupled to each other, receiving between them the document to be folded. These plates are designated by the references 20 and 21 for the pocket 2 and by the references 30 and 31 for the pocket 3.

Les plaques 20 et 21 sont couplées l'une à l'autre sur un axe terminal d'articulation 22. Quand la poche 2 est montée dans le châssis l'une de ses plaques est fixée dans la partie supérieure 5A du châssis, l'autre plaque reste par contre pivotante sur l'axe d'articulation 22. Cet axe articulation définit le fond de la poche à l'opposé de son accès 23 pour les documents qui est adjacent à l'ensemble des rouleaux. La plaque pivotante est la plaque 20 s'étendant du côté de la partie inférieure 5B du châssis dans laquelle la poche 2 concernée n'est pas montée ; la plaque fixe est la plaque 21.The plates 20 and 21 are coupled to each other on a terminal hinge pin 22. When the pocket 2 is mounted in the chassis one of its plates is fixed in the upper part 5A of the chassis, the on the other hand, another plate remains pivoting on the hinge axis 22. This hinge axis defines the bottom of the pocket opposite its access 23 for documents which is adjacent to all of the rollers. The pivoting plate is the plate 20 extending from the side of the lower part 5B of the chassis in which the pocket 2 concerned is not mounted; the fixed plate is plate 21.

La paire de plaques 30 et 31 pour la poche 3 est montée de manière analogue à la paire de plaques 20 et 21, mais dans la partie inférieure 5B du châssis. La plaque 30 s'étendant du côté de la partie supérieure 5A du châssis est pivotante autour d'un axe 32 couplant les plaques 30 et 31 à l'extrémité de la poche 3 opposée à son accès de documents 33. La plaque 31 est fixe dans la partie inférieure 5B du châssis.The pair of plates 30 and 31 for the pocket 3 is mounted in a similar manner to the pair of plates 20 and 21, but in the lower part 5B of the chassis. The plate 30 extending from the side of the upper part 5A of the chassis is pivotable about an axis 32 coupling the plates 30 and 31 at the end of the pocket 3 opposite its access to documents 33. The plate 31 is fixed in the lower part 5B of the chassis.

L'ensemble 4 de rouleaux de pliage a ses quatre rouleaux portant les références 40 à 43. Le rouleau 40 a les trois autres rouleaux 41, 42 et 43 qui lui sont tangents sur sa périphérie. L'accès 23 de la poche 2 est interposé entre les rouleaux périphériques 41 et 42 et est en regard du rouleau 40. L'accès 33 de la poche 3 est interposé entre les rouleaux périphériques 42 et 43 et est également en regard du rouleau 40.The set 4 of folding rollers has its four rollers bearing the references 40 to 43. The roller 40 has the other three rollers 41, 42 and 43 which are tangent to it on its periphery. The access 23 of the pocket 2 is interposed between the peripheral rollers 41 and 42 and is opposite the roller 40. The access 33 of the pocket 3 is interposed between the peripheral rolls 42 and 43 and is also opposite the roller 40 .

Deux de ces quatre rouleaux sont montés dans la partie supérieure 5A du châssis, ici les deux rouleaux 40 et 41 ; les deux autres rouleaux 42 et 43 sont montés dans la partie inférieure 5B.Two of these four rollers are mounted in the upper part 5A of the chassis, here the two rollers 40 and 41; the other two rollers 42 and 43 are mounted in the lower part 5B.

Un chemin d'amenée 10 des documents à plier est prévu dans la partie supérieure 5A du châssis. Un chemin de sortie 11 de documents pliés est défini entre la partie inférieure 5B et la partie supérieure 5A du châssis. Le chemin d'amenée de documents 10 est alimenté à partir d'une entrée 12 de documents; cette entrée est équipée en tablette servante transférant des documents séparés successifs à plier ou en magasin et dépileur associé transférant également les documents séparés successifs à plier. Ce chemin d'amenée 10 comporte des moyens 13 d'entraînement des documents reçus, il les guident entre les rouleaux 40 et 41. Le chemin de sortie 11 comporte les rouleaux 40 et 43 qui délivrent les documents pliés et des moyens d'entraînement 14 des documents pliés jusqu'à une sortie 15 définie à l'avant de la plieuse, sur la partie terminale de la partie inférieure 5B du châssis.A path 10 for the documents to be folded is provided in the upper part 5A of the chassis. An exit path 11 of folded documents is defined between the lower part 5B and the upper part 5A of the chassis. The document supply path 10 is supplied from a document input 12; this entry is equipped with a serving shelf transferring successive separate documents to be folded or in store and associated destacker also transferring successive separate documents to be folded. This feed path 10 comprises means 13 for driving the received documents, it guides them between the rollers 40 and 41. The outlet path 11 includes the rollers 40 and 43 which deliver the folded documents and drive means 14 folded documents up to an outlet 15 defined at the front of the folder, on the terminal part of the lower part 5B of the chassis.

Les moyens d'entraînement 13 et 14 sur les chemins 10 et 11 sont des paires de galets, ou analogues, en pression. Ils sont montés dans la partie supérieure 5A du châssis pour ceux concernant le chemin 10. Ils sont montés, comme les rouleaux 40 et 43, en vis-à-vis dans la partie supérieure 5A et la partie inférieure 5B du châssis pour ceux concernant le chemin de sortie 11 qui est défini entre ces deux parties.The drive means 13 and 14 on the tracks 10 and 11 are pairs of rollers, or the like, under pressure. They are mounted in the upper part 5A of the chassis for those relating to the path 10. They are mounted, like the rollers 40 and 43, opposite in the upper part 5A and the lower part 5B of the chassis for those relating to the exit path 11 which is defined between these two parts.

La partie supérieure 5A du châssis est articulée sur un axe d'extrémité, noté 5, de la partie inférieure 5B pour son ouverture. Cet axe 5 est parallèle aux axes d'articulation 22, 32 des plaques pivotantes des poches. Il s'étend sensiblement entre ces axes, à l'opposé de la sortie 15 sur la plieuse. La partie supérieure 5A du châssis est par ailleurs verrouillable sur la partie basse 5B du châssis par tout moyen approprié, non représenté.The upper part 5A of the chassis is articulated on an end axis, noted 5, of the lower part 5B for its opening. This axis 5 is parallel to the articulation axes 22, 32 of the pivoting plates of the pockets. It extends substantially between these axes, opposite the outlet 15 on the folder. The upper part 5A of the chassis is also lockable on the lower part 5B of the chassis by any suitable means, not shown.

La plieuse selon l'invention illustré fermée dans la figure 1 est par contre illustrée ouverte dans la figure 2, pour faire ressortir directement ses avantages.The folding machine according to the invention illustrated closed in FIG. 1 is on the other hand illustrated open in FIG. 2, in order to bring out its advantages directly.

Dans la figure 2, l'ouverture de la plieuse est réalisée par le pivotement selon la flèche 5C de la partie supérieure 5A du châssis autour de son axe 5. Cette ouverture de la plieuse donne directement accès au chemin de sortie 11 de documents pliés, qui se trouve lui-même ouvert sur sa longueur. Il donne aussi très aisément accès au chemin d'amenée 10, par la face inférieure ouverte de la partie supérieure 5A du châssis.In FIG. 2, the opening of the folder is made by the pivoting according to arrow 5C of the upper part 5A of the frame around its axis 5. This opening of the folder gives direct access to the exit path 11 of folded documents, which is itself open along its length. It also gives very easy access to the supply path 10, via the open lower face of the upper part 5A of the chassis.

Par la constitution des poches, chacune à une plaque fixe et l'autre pivotante, avec cette dernière montée du côté de la partie du châssis qui ne porte pas la poche considérée, l'ouverture de la plieuse permet l'ouverture de l'une et/ou l'autre des poches pour donner libre accès à tout le logement intérieur défini par chacune d'elles. La flèche 20C traduit le pivotement de la plaque pivotante 20 autour de l'axe 22 pour l'ouverture de la poche 2. La flèche 30C traduit la même opération pour la poche 3.By the constitution of the pockets, each with a fixed plate and the other pivoting, with the latter mounted on the side of the part of the chassis which does not carry the pocket considered, the opening of the folder allows the opening of one and / or the other of the pockets to give free access to all the interior housing defined by each of them. The arrow 20C translates the pivoting of the pivoting plate 20 around the axis 22 for the opening of the pocket 2. The arrow 30C translates the same operation for the pocket 3.

L'ensemble des rouleaux de pliage désassemblé et donc ouvert par l'ouverture de la plieuse ne fait plus obstable à la suppression d'un éventuel bourrage entre le rouleau 40 et les rouleaux 41, 42 et 43.The assembly of folding rollers disassembled and therefore opened by the opening of the folder no longer makes it impossible to remove any jamming between the roller 40 and the rollers 41, 42 and 43.

La constitution et le montage des poches associées à l'ensemble des rouleaux de pliage sont décrits plus précisément en regard du mode de réalisation illustré dans la figure 3. Dans cette figure 3, les éléments mentionnés au cours de la description de la figure 1 sont désignés par les mêmes références.The constitution and mounting of the pockets associated with all of the folding rollers are described more precisely with regard to the embodiment illustrated in FIG. 3. In this FIG. 3, the elements mentioned during the description of FIG. 1 are designated by the same references.

Dans cette figure 3, on voit que la plaque pivotante 20 et la plaque fixe 21 de la poche 2 sont couplées l'une à l'autre sur l'axe d'articulation 22 prévu pour la plaque pivotante 20. L'axe d'articulation 22 est centré sur la hauteur de la poche, à son bout arrière. L'une et l'autre des plaques 20 et 21 présentent des pattes de fixation sur l'axe 22, telles que 24, saillantes sur leur face intérieure et au voisinage de leur bord arrière. Ces pattes ont leur partie saillante de profilé semi-circulaire ; elles assurent le maintien des plaques sur l'axe 22 et contribuent au léger écartement des plaques, l'une de l'autre.In this FIG. 3, it can be seen that the pivoting plate 20 and the fixed plate 21 of the pocket 2 are coupled to one another on the articulation axis 22 provided for the pivoting plate 20. The axis of articulation 22 is centered on the height of the pocket, at its rear end. Both of the plates 20 and 21 have fixing lugs on the axis 22, such as 24, protruding on their inner face and in the vicinity of their rear edge. These legs have their projecting part of semi-circular profile; they maintain the plates on the axis 22 and contribute to the slight separation of the plates from one another.

La plaque fixe 21 de la poche 2 est par ailleurs fixée à l'aide de vis telles que 25 sur la partie supérieure 5A du châssis pour éviter tout débattement possible de cette plaque autour de l'axe 22. La plaque pivotante 20 est quant à elle sollicitée élastiquement vers la plaque 21, par un ressort 26, fixé d'une part sur la tranche de la plaque 20 et d'autre part sur la partie supérieure 5A du châssis.The fixed plate 21 of the pocket 2 is also fixed using screws such as 25 on the upper part 5A of the chassis to avoid any possible movement of this plate around the axis 22. The pivoting plate 20 is it is urged elastically towards the plate 21, by a spring 26, fixed on the one hand on the edge of the plate 20 and on the other hand on the upper part 5A of the chassis.

L'une des deux plaques 20 et 21, ici la plaque 21, présente dans sa partie terminale opposée à l'axe 22, un talon latéral 21A qui assure l'écartement souhaité entre les plaques 20 et 21, à l'encontre de l'action du ressort 26. En variante, une paire de pattes à branche en U peut assurer, en même temps, la fixation de la plaque 21 sur la partie supérieure du châssis et le non accolement des faces en vis-à-vis des plaques 20 et 21 à l'encontre de l'action des moyens élastiques sollicitant la plaque pivotante contre la plaque fixe.One of the two plates 20 and 21, here the plate 21, has in its end portion opposite the axis 22, a lateral heel 21A which ensures the desired spacing between the plates 20 and 21, against the action of the spring 26. As a variant, a pair of legs with a U-shaped branch can ensure, at the same time, the fixing of the plate 21 on the upper part of the chassis and the non-abutment of the faces opposite the plates 20 and 21 against the action of the elastic means urging the pivoting plate against the fixed plate.

Les plaques 20 et 21 présentent l'une et l'autre dans leur portion médiane une fenêtre 27A ou 27B selon la plaque considérée. Un jeu de galets 28A est monté sur la plaque 20 dans sa fenêtre 27A et un autre jeu de galets 28B est monté sur la plaque 21 dans sa propre fenêtre 27B. Les galets 28B portés par la plaque fixe 21 sont légèrement saillants sur la face intérieure de cette plaque ; les galets 28A affleurent dans la poche sur la face intérieure de la plaque pivotante. Ces galets 28A et 28B se correspondent pour être un vis-à-vis sur les plaques et venir en contact les uns contre les autres, en légère pression à l'intérieur de la poche 2. Ils assurent, lors du pliage de plusieurs documents ensemble, un serrage sans glissement de ces documents les uns contre les autres. Ce serrage est utilisé pour permettre la retenue de documents multiples à plier ensemble et en particulier de documents de petit format à plier avec des documents de plus grand format, et ainsi éviter de provoquer des bourrages supplémentaires possibles. Ces galets saillants à l'intérieur de la poche 2 sont avantageusement plus proches de l'accès 23 que de l'axe d'articulation 22 de l'extrémité arrière.The plates 20 and 21 each have in their middle portion a window 27A or 27B depending on the plate considered. A set of rollers 28A is mounted on the plate 20 in its window 27A and another set of rollers 28B is mounted on the plate 21 in its own window 27B. The rollers 28B carried by the fixed plate 21 are slightly projecting on the inner face of this plate; the rollers 28A are flush with the pocket on the inside of the pivoting plate. These rollers 28A and 28B correspond to be a vis-à-vis on the plates and come into contact against each other, under slight pressure inside the pocket 2. They ensure, when folding several documents together , a tightening without sliding of these documents against each other. This tightening is used to allow the retention of multiple documents to be folded together and in particular of small format documents to be folded with larger documents, and thus avoid causing possible additional jams. These projecting rollers inside the pocket 2 are advantageously closer to the access 23 than to the hinge pin 22 of the rear end.

Un doigt pivotant 29 est monté sur la plaque fixe 21, en obstacle effaçable par la simple avance des documents à plier dans la poche 2. Le doigt 29 s'étend, à travers la fenêtre 27B de la plaque 21, ou une autre fenêtre individuelle, jusque dans la fenêtre correspondante de la plaque pivotante 20, quand il est en obstacle à l'intérieur de la poche. Il s'efface dans son logement de la plaque 21, ainsi que schématisé en pointillés, lorsqu'un document à plier est présent dans la poche.A pivoting finger 29 is mounted on the fixed plate 21, in an erasable obstacle by the simple advance of the documents to be folded into the pocket 2. The finger 29 extends, through the window 27B of the plate 21, or another individual window , as far as the corresponding window of the pivoting plate 20, when it is in obstacle inside the pocket. He fades into his home from the plate 21, as shown diagrammatically in dotted lines, when a document to be folded is present in the pocket.

Ce doigt 29 est couplé à un levier 29A qu'il actionne. Le levier s'étend sur l'extérieur de la poche 2. Il sert de détecteur de présence de document dans la poche 2. Il est à cet effet associé à un circuit de détection de bourrage dans la poche 2, non représenté, qui comporte un couple de cellules affecté à la détection de position du levier et donc du doigt pivotant 29, une temporisation et un circuit logique de décision. La temporisation est déclenchée par le couple de cellules dès effacement du doigt 29 ; elle est choisie pour traduire l'intervalle de temps maximal de présence dans la poche d'un document normalement évacué, qui ne donne pas lieu à un bourrage. Le retour en obstacle du doigt pivotant annule le déclenchement de la temporisation.This finger 29 is coupled to a lever 29A which it actuates. The lever extends over the outside of the pocket 2. It serves as a document presence detector in the pocket 2. It is therefore associated with a jam detection circuit in the pocket 2, not shown, which comprises a pair of cells assigned to detecting the position of the lever and therefore of the pivoting finger 29, a time delay and a logic decision circuit. The time delay is triggered by the pair of cells as soon as finger 29 is deleted; it is chosen to translate the maximum time interval of presence in the pocket of a normally discharged document, which does not give rise to a jam. The return to obstacle of the pivoting finger cancels the triggering of the delay.

Au delà de cet intervalle de temps de temporisation le non retour en obstacle du doigt pivotant traduit un bourrage alors détecté par le circuit de décision.Beyond this time delay interval, the non-return of the pivoting finger to an obstacle indicates a jam then detected by the decision circuit.

La poche 3 est équipée de manière analogue. Ses plaques 30 et 31 ont des pattes 34 assurant leur maintien sur l'axe d'articulation 32. La plaque fixe 31 est maintenue par des moyens non représentés sur la partie inférieure 5B du châssis. Un ressort non représenté sollicite la plaque pivotante 30 vers la plaque fixe 31. Un talon latéral 30A, ici sur la plaque 30, ou un autre moyen assure avec les pattes 34 l'écartement souhaité des plaques 30 et 31. Ces plaques ont des fenêtres 37A, 37B dans lesquelles sont montés des galets 38A, 38B en contact l'un contre l'autre dans la poche. Le galet 38B est saillant dans la poche, l'autre 38A affleure juste sur la plaque 30. Un doigt pivotant 39 monté sur la plaque fixe 31 forme un obstable effaçable dans la poche 3. Un levier 39A actionné par le doigt 39 permet la détection de présence de document dans la poche 3 et commande un circuit de détection de bourrage, non représenté, pour cette poche 3 analogue à celui affecté à la poche 2.The pocket 3 is similarly equipped. Its plates 30 and 31 have lugs 34 ensuring their maintenance on the hinge pin 32. The fixed plate 31 is held by means not shown on the lower part 5B of the chassis. A spring (not shown) urges the pivoting plate 30 towards the fixed plate 31. A lateral heel 30A, here on the plate 30, or another means ensures with the lugs 34 the desired spacing of the plates 30 and 31. These plates have windows 37A, 37B in which rollers 38A, 38B are mounted in contact with one another in the pocket. The roller 38B is protruding in the pocket, the other 38A just flush with the plate 30. A pivoting finger 39 mounted on the fixed plate 31 forms an erasable obstable in the pocket 3. A lever 39A actuated by the finger 39 allows detection presence of document in pocket 3 and controls a jam detection circuit, not shown, for this pocket 3 similar to that assigned to pocket 2.

En variante de la disposition à détecteur mécanique 29 ou 39 de présence d'un document dans chacune des poches 2 et 3, chaque poche peut être équipée d'un détecteur photo-électrique individuel ou commun 29′, 39′, ainsi que schématisé dans la figure 1. Les cellules émettrice et détectrice de chaque détecteur individuel 29′, 39′ peuvent être montées sur les plaques de chaque poche, ou sur l'extérieur des plaques de chaque poche en étant couplées l'une à l'autre, en l'absence de document dans la poche, à travers des fenêtres convenables dans ses plaques. La cellule émettrice et la cellule réceptrice du détecteur commun peuvent être montées sur les plaques fixes 21, 31 de l'une et de l'autre poche 2, 3 ; elles sont couplées à travers des fenêtres convenables des plaques pivotantes 20 et 30 des poches 2, 3 quand la plieuse est fermée et en l'absence de document dans l'une des deux poches.As a variant of the arrangement with a mechanical detector 29 or 39 for the presence of a document in each of the pockets 2 and 3, each pocket can be equipped with an individual or common photoelectric detector 29 ′, 39 ′, as shown diagrammatically in FIG. 1. The emitter and detector cells of each individual detector 29 ′, 39 ′ can be mounted on the plates of each pocket, or on the outside of the plates of each pocket being coupled to one another, in the absence of a document in the pocket, through suitable windows in its plates. The transmitting cell and the receiving cell of the common detector can be mounted on the fixed plates 21, 31 of either of the pockets 2, 3; they are coupled through suitable windows of the pivoting plates 20 and 30 of the pockets 2, 3 when the folder is closed and in the absence of a document in one of the two pockets.

Au moins l'une des deux plaques de chaque poche peut être équipée d'une arête saillante sur sa face intérieure, sur chaque côté latéral de la poche, qui vient fermer latéralement la poche quand la plieuse est fermée. Ces arêtes peuvent jouer le rôle des talons précités pour l'écartement souhaité entre la plaque fixe et la plaque pivotante, ou peuvent venir déborder extérieurement sur la plaque en vis-à-vis de celle qui les porte.At least one of the two plates of each pocket can be equipped with a projecting edge on its inner face, on each lateral side of the pocket, which laterally closes the pocket when the folder is closed. These edges can play the role of the aforementioned heels for the desired spacing between the fixed plate and the pivoting plate, or can come to project outwardly on the plate opposite that which carries them.

Un câble 50, pour la poche 2 montée dans la partie supérieure 5A du châssis, est fixé en un point intermédiaire de sa plaque pivotante 20, relativement proche de l'entrée 23 de la poche et sur un support arrière 51 de la partie inférieure 5B du châssis. Un autre câble 60, pour la poche 3 montée dans la partie inférieure 5B du châssis, est fixé à sa plaque pivotante 30 et à un support arrière 61 de la partie supérieure 5A du châssis.A cable 50, for the pocket 2 mounted in the upper part 5A of the chassis, is fixed at an intermediate point of its pivoting plate 20, relatively close to the inlet 23 of the pocket and on a rear support 51 of the lower part 5B of the chassis. Another cable 60, for the pocket 3 mounted in the lower part 5B of the chassis, is fixed to its pivoting plate 30 and to a rear support 61 of the upper part 5A of the chassis.

En outre, un volet d'obturation 53 est monté sur le côté de l'accès 23 de la poche 2. Il est pivotant entre une position d'ouverture, montrée en pointillés, et une position de fermeture montrée en traits pleins. Ce volet selon sa position permet d'utiliser ou non la poche 2 de la plieuse. Une butée 62 est montée dans la poche 3. Elle forme obstacle à l'intérieur de la poche 3, vers son extrémité proche de l'axe d'articulation 32. Elle est portée par la plaque fixe 31 de cette poche. Cette butée est réglable relativement à l'accès 33 de la poche 3 selon la flèche 63 et/ou est montée escamotable sur la plaque fixe. Bien entendu chacune des poches peut être équipée d'un volet pivotant d'obturation de son accès, tel que le volet 53 et d'une butée telle que 62. Une commande extérieure individuelle ou commune, non représentée, est couplée au volet 53 de la poche 2 et à la butée 62 de la poche 3 pour la mise du volet dans sa position souhaitée selon que l'on désire ou non utiliser la poche 2 et la mise de la butée à sa position convenable correspondante. La plieuse permet ainsi de réaliser un pliage en trois des documents qu'elle reçoit, par utilisation de ses deux poches, ou un pliage en deux des documents, par utilisation d'une seule de ses deux poches, en l'occurrence la poche 3.In addition, a shutter 53 is mounted on the side of the access 23 of the pocket 2. It is pivotable between an open position, shown in dotted lines, and a closed position shown in solid lines. This flap, depending on its position, allows the pocket 2 of the folder to be used or not. A stop 62 is mounted in the pocket 3. It forms an obstacle inside the pocket 3, towards its end close to the hinge pin 32. It is carried by the fixed plate 31 of this pocket. This stop is adjustable relative to the access 33 of the pocket 3 according to the arrow 63 and / or is retractable on the fixed plate. Of course, each of the pockets can be equipped with a pivoting shutter for closing off its access, such as the shutter 53 and with a stop such as 62. An individual or common external control, not shown, is coupled to the shutter 53 of the pocket 2 and at the stop 62 of the pocket 3 for putting the shutter in its desired position depending on whether or not it is desired to use the pocket 2 and putting the stop at its corresponding suitable position. The folder thus makes it possible to fold the documents it receives in three, by using its two pockets, or a folding in half of the documents, by using only one of its two pockets, in this case pocket 3 .

La figure 4 correspond à la figure 3 et montre la plieuse avec la partie supérieure 5A de son châssis ouverte sur la partie basse 5B, par pivotement selon la flèche 5C autour de l'axe 5. Les câbles 50 et 60 fixés sur les plaques pivotantes des poches 2 et 3 ont alors provoqué l'ouverture des poches avec l'ouverture de la plieuse selon la flèche 5C.FIG. 4 corresponds to FIG. 3 and shows the folder with the upper part 5A of its chassis open on the lower part 5B, by pivoting along the arrow 5C around the axis 5. The cables 50 and 60 fixed on the pivoting plates pockets 2 and 3 then caused the opening of the pockets with the opening of the folder according to arrow 5C.

La flèche 20C traduit le pivotement de la plaque pivotante 20 autour de l'axe 22 qui a été effectué. Une flèche 30C traduit le pivotement de la plaque pivotante 30 autour de l'axe 32, pour la poche 3.The arrow 20C translates the pivoting of the pivoting plate 20 around the axis 22 which has been carried out. An arrow 30C translates the pivoting of the pivoting plate 30 around the axis 32, for the pocket 3.

Ainsi que montré dans les figures 3 et 4 pour la poche 3, dont les rouleaux périphériques de pliage associés 42 et 43 sont montés avec elle dans la partie inférieure du châssis, la plaque pivotante 30 a été tronquée pour ne pas s'étendre jusqu'aux rouleaux de pliage 42 et 43. Une petite contre plaque auxiliaire 64 remplace la partie terminale tronquée de la plaque pivotante 30. Cette contre plaque auxiliaire 64 est montée fixe dans la partie basse 5B du châssis ; elle définit simplement l'accès de la poche 3, avec la portion en regard de la plaque fixe 31. La plaque pivotante 30, à portion terminale tronquée, échappe ainsi librement au rouleau de pliage 42 lors de l'ouverture de la plieuse et l'ouverture résultante de la poche 3.As shown in FIGS. 3 and 4 for the bag 3, whose associated peripheral folding rollers 42 and 43 are mounted with it in the lower part of the chassis, the pivoting plate 30 has been truncated so as not to extend up to to the folding rollers 42 and 43. A small auxiliary plate 64 replaces the truncated end part of the pivoting plate 30. This auxiliary plate 64 is fixedly mounted in the lower part 5B of the chassis; it simply defines the access to the pocket 3, with the facing portion of the fixed plate 31. The pivoting plate 30, with a truncated end portion, thus freely escapes the folding roller 42 when the folder is opened and the resulting opening of the pocket 3.

En regard des figures 3 et 4, on note également que les plaques 20, 21 et 30, 31 ont été réalisées d'épaisseur suffisante pour permettre le montage des éléments qui équipent chacune des poches et que portent ces plaques. Les portions terminales des plaques 20, 21 et 31 et de la contre plaque 64 qui définissent les accès 23, 33 des poches, sont rendues d'épaisseur moindre pour que leurs faces extérieures échappent aux rouleaux de pliage 41, 42 et 42, 43 et permettent une bonne interposition des accès 23 et 33 de ces poches entre ces rouleaux.With reference to FIGS. 3 and 4, it is also noted that the plates 20, 21 and 30, 31 have been made of sufficient thickness to allow the mounting of the elements which equip each of the pockets and which these plates carry. The end portions of the plates 20, 21 and 31 and of the counter plate 64 which define the accesses 23, 33 of the pockets, are made of less thickness so that their outer faces escape the folding rollers 41, 42 and 42, 43 and allow good interposition of accesses 23 and 33 of these pockets between these rollers.

Un moteur 7 assure l'entraînement des rouleaux de pliage 40-43 et des rouleaux ou galets sur les chemins d'amenée 10 et de sortie 11 de la plieuse. Ce moteur 7 est couplé au rouleau 43 qui lui-même entraîne par friction, ou un couplage par pignons dentés, le rouleau 40, quand la plieuse est fermée selon la figure 3 et mise en fonctionnement. Ce rouleau 40 entraîne à son tour identiquement les rouleaux 41 et 42.A motor 7 drives the folding rollers 40-43 and the rollers or rollers on the supply and exit paths 10 of the folder. This motor 7 is coupled to the roller 43 which itself drives by friction, or a coupling by toothed gears, the roller 40, when the folder is closed according to FIG. 3 and put into operation. This roller 40 in turn identically drives the rollers 41 and 42.

Le fonctionnement de la plieuse n'est pas modifié par la constitution particulière de son ensemble de rouleaux montés en partie dans la partie supérieure du châssis et pour l'autre partie dans la partie inférieure du châssis, ni par la constitution particulière de ses poches. Les rouleaux 40 et 41 entraînent le document à plier et l'introduisent dans la poche 2 ouverte ; l'avance du document dans la poche est bloquée par les pattes 24 à l'arrière de la poche ou la butée intérieure qu'elle peut comporter, pour la formation d'une boucle devant l'accès 23 ; la prise de cette boucle entre les rouleaux 40 et 42 donne lieu au premier pliage et assure l'introduction du document dans la poche 3, avec ce premier pli en tête, tandis que le document se dégage de la poche 2 et reste entraîné par les rouleaux 40, 41. Le deuxième pli est obtenu de même manière et le document est évacué plié en trois par les rouleaux 40 et 43 sur le chemin de sortie. Le doigt pivotant dans chaque poche s'efface avec la présence du document à son niveau et se remet en obstacle lors du retrait du document à son niveau. Les galets saillants dans la poche en amont du doigt maintiennent un serrage des documents dans la poche pendant leur avance et leur retrait de la poche. Un maintien excessif en temps de ce doigt pivotant en position effacée traduit un bourrage ; il donne lieu à l'arrêt de la plieuse. La suppression d'un tel bourrage est alors réalisée rapidement et simplement par l'ouverture de la plieuse.The operation of the folder is not modified by the particular constitution of its set of rollers mounted partly in the upper part of the chassis and for the other part in the lower part of the chassis, nor by the particular constitution of its pockets. The rollers 40 and 41 drive the document to be folded and introduce it into the open pocket 2; the advance of the document into the pocket is blocked by the tabs 24 at the rear of the pocket or the internal stop that it may include, for the formation of a loop in front of the access 23; the taking of this loop between the rollers 40 and 42 gives rise to the first folding and ensures the introduction of the document into the pocket 3, with this first fold in head, while the document emerges from the pocket 2 and remains driven by the rollers 40, 41. The second fold is obtained in the same way and the document is discharged folded in three by rollers 40 and 43 on the exit path. The pivoting finger in each pocket disappears with the presence of the document at its level and puts itself in obstacle when the document is withdrawn at its level. The protruding rollers in the pocket upstream of the finger maintain a clamping of the documents in the pocket during their advance and their withdrawal from the pocket. Excessive holding in time of this pivoting finger in the erased position indicates jamming; it gives rise to the stop of the folder. The removal of such a jam is then carried out quickly and simply by opening the folder.

Pour l'obtention d'un seul pli, l'accès à l'une des poches est fermé ; ce seul pli est alors obtenu par l'autre poche.To obtain a single fold, access to one of the pockets is closed; this single fold is then obtained by the other pocket.

La présente invention a été décrite en regard de l'exemple de réalisation illustré. Il est évident que l'on peut y rapporter des modifications de détail et des adaptations découlant de la disposition des poches en regard de l'ensemble de rouleaux de pliage qui leur est associé, sans pour autant sortir du cadre de cette invention.The present invention has been described with reference to the illustrated embodiment. It is obvious that it is possible to relate therein modifications of detail and adaptations resulting from the arrangement of the pockets opposite the set of folding rollers which is associated with them, without thereby departing from the scope of this invention.

Claims (10)

  1. A folder with pockets, the folder comprising two portions, a bottom portion (5B) and a top portion (5A) hinged to the bottom portion for opening purposes, the folder having an inlet (12) for sheets to be folded in its top portion and an outlet (15) for folded sheets on its bottom portion, the folder comprising:
    - a set (4) of folding rollers receiving the sheets to be folded from said inlet (12) and delivering them folded on an outlet path (11) leading to said outlet (15),
    - a first pocket (2) in the top portion and a second pocket (3) in the bottom portion, each pocket having a sheet access (23, 33) adjacent to said set (4) of rollers,
    said folder being characterized in that it is constituted on a frame in two portions defining said top portion (5A) and said bottom portion (5B) of the folder, and in that said set (4) of rollers has a portion of its rollers (40, 41) mounted in the top portion (5A) of the frame and the remainder of its rollers (42, 43) mounted in the bottom portion (5B) of the frame, defining said outlet path (11) for folded sheets directly between the top portion (5A) and the bottom portion (5B) of the frame, said set (4) of rollers coming apart on being opened, said outlet path (11) opening when the frame is opened, and said pockets (2, 3) opening when the frame is opened.
  2. A folder with pockets according to claim 1, and in which said first and second pockets are each defined by a fixed wall (21, 31) and a facing pivoting wall (20, 30) for opening the pockets when the top portion of the folder is opened, characterized in that each of said first and second pockets (2, 3) is constituted substantially identically and independently of the frame, by a pair of plates (20, 21; 30, 31) coupled to each other about an end hinge axis (22, 32) opposite from the access to the pocket, and in that each pocket further includes: first fixing means (25) for fixing that one of the plates of the pocket which constitutes the fixed wall (21, 31) to the frame; resilient second means (26) urging the other plate forming said pivoting wall (20, 30) against the fixed wall; and separating third means (21A, 30A; 24, 34) for ensuring that the facing faces of each pair of plates do not touch one another.
  3. A folder with pockets according to claim 2, characterized in that it further includes at least one first wheel (28B, 38B) mounted on at least one of the plates of each pocket and projecting against the other plate of the pocket.
  4. A folder with pockets according to claim 3, characterized in that it further includes at least one second wheel (28A, 38A) carried by the other one of said plates in each pocket, lying flush with the inside face of the pocket and receiving the first projecting wheel (28B, 30B) thereagainst.
  5. A folder with pockets according to any one of claims 2 to 4, characterized in that said separator means comprise lugs (24, 34) projecting from the facing faces of the plates of each pocket, and serving to hold the plates relative to the end hinge axes (22, 32).
  6. A folder with pockets according to claim 5, characterized in that said separator means further include at least one lateral separator stud (21A, 30A) on one of the plates, and projecting towards the other plate.
  7. A folder with pockets according to any one of claims 2 to 6, characterized in that the fixed plate (21, 31) of each pocket carries a pivoting finger (29, 39) mounted as an obstacle retractable by the document inside the pocket and coupled to an element (29A) outside the pocket for detecting the presence of a document inside the pocket.
  8. A folder with pockets according to any one of claims 2 to 6, characterized in that it includes a photoelectric detector (29', 39') for detecting the presence of a document in the pockets.
  9. A folder with pockets according to claim 8, characterized in that said photoelectric detector (29', 39') is common to both said first and second pockets, and is constituted by an emitting cell and a detecting cell coupled to each other through both pockets (2, 3) in the absence of a document in either pocket.
  10. A folder with pockets according to any one of claims 2 to 9, and in which the pivoting wall (20, 30) of each of said pockets (2, 43) is that one of the plates which is situated adjacent to the portion of the frame which does not include the pocket in question, characterized in that it includes a cable (50, 60) for opening each of the pockets (2, 3), each cable being fixed at one end to the pivoting wall (20, 30) of one respective pocket and at the other end to a support (51,52) mounted in that portion of the frame which does not include the pocket in question, said cable causing the pocket to be opened when the top portion (5A) of the frame is opened relative to the bottom portion (5B) therefore, and against the action of the resilient means (26) coupled to the pivoting plate (26) of this pocket.
EP89113564A 1988-07-27 1989-07-24 Buckling folder Expired - Lifetime EP0352694B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8810119 1988-07-27
FR8810119A FR2634747B1 (en) 1988-07-27 1988-07-27 POCKET FOLDER

Publications (2)

Publication Number Publication Date
EP0352694A1 EP0352694A1 (en) 1990-01-31
EP0352694B1 true EP0352694B1 (en) 1993-03-24

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EP89113564A Expired - Lifetime EP0352694B1 (en) 1988-07-27 1989-07-24 Buckling folder

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US (1) US5000432A (en)
EP (1) EP0352694B1 (en)
AU (1) AU611819B2 (en)
CA (1) CA1312099C (en)
DE (1) DE68905547T2 (en)
ES (1) ES2040941T3 (en)
FR (1) FR2634747B1 (en)

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DE102023126170A1 (en) 2022-10-04 2024-04-04 Elmos Semiconductor Se QRNG with PRNG usage and vertical entropy source
DE102023126168A1 (en) 2022-10-04 2024-04-04 Elmos Semiconductor Se Integrated quantum random number generator
WO2024074170A1 (en) 2022-10-04 2024-04-11 Elmos Semiconductor Se Qrng with prng use and vertical entropy source

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Publication number Publication date
AU611819B2 (en) 1991-06-20
DE68905547D1 (en) 1993-04-29
CA1312099C (en) 1992-12-29
FR2634747B1 (en) 1990-09-14
DE68905547T2 (en) 1993-07-01
AU3887189A (en) 1990-02-01
EP0352694A1 (en) 1990-01-31
ES2040941T3 (en) 1993-11-01
US5000432A (en) 1991-03-19
FR2634747A1 (en) 1990-02-02

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