EP0661175A1 - Automatic document feeder for folding and/or inserting apparatus - Google Patents

Abstract

This automatic feeder (100) has a document inlet (1) which is surmounted by at least two loading trays (101, 102) which can interact with this inlet (1) in different operating modes either individually or in combination with each other by means of a set of detectors (116, 117, 118, 216, 217, 218) and of driving members (133, 10A), which is managed by a programmed microprocessor of the control circuit (6) via an input/output interface circuit (62) housed in this feeder. <IMAGE>

Description

The present invention relates to the specific field of mail processing. It relates in particular to an automatic document feeder intended to equip a folding and / or insertion machine as described in patents EP-O-352,692 and EP-O-485,797 in the name of the applicant.

These office machines usually have, mounted on their chassis, a document feeder, an empty envelope store and a loaded envelope exit device. At least one folded or unfolded document has been inserted into each loaded envelope.

Generally, the feed device is a feeder which operates, either by manual picking up of a document, or by automatic picking up, one by one, of the documents stacked in this feeder, without possible combination.

The invention proposes to improve this document supply device by adding other operating modes to it in order to further improve the performance of the folding / inserting machine, while making it more user-friendly, easy to use and easily customizable according to the real needs of the user.

To this end, it relates to an automatic document feeder for a folding and / or insertion machine of the type comprising a first path coupled to a document entry and feeding a folding module with two folding pockets associated with a set folding rollers, a second path coupled to an inlet for empty envelopes and supplying an insertion module itself coupled to the folding module for receiving the documents delivered, a third path coupled to an outlet for loaded and closed envelopes , and at the insertion station, and equipped with means for closing the envelopes, as well as a general circuit for ordered. The document entry is overcome in this automatic feeder, with at least two loading bins capable of cooperating with this entry according to different operating modes, individually or in combination with each other, by means of a set of detectors and drive members, managed by a programmed microprocessor of the general control circuit via an input / output interface circuit housed in this feeder. At least one loading bin has a movable bottom capable of occupying either a closed position for automatic document insertion, or an open position for manual document introduction, by means of a cam mechanism.

Loading bins can be used, in manual sheet feed mode, or in automatic sheet feed mode, independently of each other, or in combination with each other.

This arrangement thus provides the folding and / or insertion machine with great flexibility of use obtained with a large choice of operating modes, associated with a wide choice of document categories (dimensions, grammages, quality, type, ...). The use of several loading bins in automatic modes, with possible loading in hidden time, also increases the efficiency of this machine.

The possible transformation of the loading bin makes it possible to reduce the total number of bins while facilitating combinations of operation in mixed mode. The use of a double-function tray in the first row, facing the user of the machine, makes the machine particularly practical to use and improves its ergonomics.

• la figure 1 représente une vue schématique d'une plieuse/inséreuse équipée d'un alimenteur automatique de documents conforme à l'invention;
• les figures 2 et 3 représentent deux vues en coupe schématiques de l'alimenteur illustré sur la figure 1, respectivement dans les modes automatiques et semi-automatiques de fonctionnement;
• les figures 4 et 5 représentent deux vues en coupe schématiques d'un mécanisme de commande à cames incorporé à l'alimenteur illustré sur les figures 2 et 3, occupant des positions correspondant à ces figures respectivement;
• et la figure 6 représente un schéma fonctionnel de commande de l'alimenteur illustré sur les figures précédentes.

Other features and advantages of the invention will emerge more clearly from the following description of a preferred embodiment, given by way of example with reference to the appended drawings in which:

• Figure 1 shows a schematic view of a folder / inserter equipped with an automatic document feeder according to the invention;
• Figures 2 and 3 show two schematic sectional views of the feeder illustrated in Figure 1, respectively in the automatic and semi-automatic modes of operation;
• Figures 4 and 5 show two schematic sectional views of a cam control mechanism incorporated in the feeder illustrated in Figures 2 and 3, occupying positions corresponding to these figures respectively;
• and FIG. 6 represents a functional diagram of control of the feeder illustrated in the preceding figures.

In accordance with FIG. 1, the folding and insertion machine according to the invention serves to ensure the enveloping of documents such as mail folds, preferably as and when these folds are made. It is part of the equipment of a secretarial workstation where it constitutes one of the machines available to the person working at this workstation. The machine according to the invention is simply placed on the work surface of the psote while being made easy to access for the person in this position, in particular for the presentation of the folds of which it ensures the envelope.

The machine has an inlet 1 for the plies located at the base of a feeder 100, a magazine 2 for empty envelopes and an outlet 3 for loaded and closed envelopes, which are formed on a machine chassis 5. The chassis 5 is formed in two parts called the upper chassis 5A and the lower chassis 5B. The upper chassis at its open lower face and is mounted articulated on the lower chassis 5B with open upper face, around an axis 5C. This axis 5C is carried by the lower chassis and is close to its wall rear, considering the machine installed in a secretarial position. The upper chassis 5A is also locked on the lower chassis 5B which it then closes, by known unlockable means, not shown.

The entry 1 of the folds and the store 2 of empty envelopes are defined on the upper wall of the upper frame 5A, with the entry 1 more at the front than the store 2 of empty envelopes. The outlet 3 of the loaded and closed envelopes is defined at the bottom and at the front of the lower chassis 5B. The mail folds made up are thus easily introduced on entry 1, while the closed envelopes are very easily taken on exit 3; the empty envelopes are in turn loaded by pack into the magazine 2 which constitutes the entry of empty envelopes and avoids manual introduction of each empty envelope onto this entry of empty envelopes.

At the entrance 1 of the folds there corresponds a path 10 of the folds into the machine, which feeds a functional folding module 11. The folding module 11 has two folding pockets 12 and 13 associated with a set of folding rollers 14. This path 10 defines the trajectory of the folds transferred from the entry 1 to the folding module 11. It forms a bend guiding the folds from the entry 1 towards the rear part of the upper chassis 5A, to supply the folding module, mounted in part in the rear part of the chassis 5A and for the other part in that of the chassis 5B. This folding module itself ensures at the end of the path 10, a folding of the path of the folds during the folding that it performs.

The store 2 of empty envelopes, constituting the entry of empty envelopes, corresponds to a path 20 of the empty envelopes in the machine. This path 20 intersects the path 10 of the folds to reach the substantially middle part of the machine. It has a broken trajectory, substantially S-shaped and is equipped with means for opening the flap of the empty envelopes, 21.

At the outlet 3 of closed envelopes, there is a path 30 of loaded envelopes. This path 30 is substantially linear; it extends above the outlet 3, between the upper and lower chassis 5A, 5B, from the front of the machine to the path 20 of empty envelopes and is substantially aligned with the outlet of the folds of the folding module 11. This path 30 is equipped with a functional module for loading the folds into the empty envelopes, a functional module for wetting the flaps 32 and a folding and closing module for the flaps 33.

The folding 11, loading 31 and wetting 32 modules are said to be functional because they become disorganized with the opening of the upper chassis 5A on the lower chassis 5B.

A control circuit 6 defines the commands of the machine during a control cycle, in connection with an interface circuit 62 specific to the feeder 100.

Different elements of the machine are specified below, with respect to the document feeding part.

The entry 1 of the folds on the machine is equipped with a display unit which extends above the upper chassis 5A, with a slight inclination, foot at the front, on the vertical. This display unit consists of the automatic feeder which is the subject of the present invention.

On the outside of the chassis, the inlet chute 1 integral with the feeder is flared, to facilitate the introduction of the folds. Inside the chassis it is coupled to path 10 and is equipped to constitute controlled access on path 19 of the folds.

The path 10 of the folds is defined by two sets of drive rollers 15A, 16A with their two sets of associated counter-rollers 15B, 16B and an intermediate guide chute 17, which is bent and formed by a pair of deflectors. It may include a coupling chute, not shown, between the set of rollers and counter-rollers 16A, 16B and the folding module. This coupling chute is substantially linear; it is interrupted for the path 20 of empty envelopes, which intersects the path 10 of the folds at its level, or extends only on one side of this path 20. The rollers and counter-rollers 15A, 15B and 16A and 16B and the chute 17 are mounted in the upper chassis 5A.

The pair of sets of rollers and counter-rollers 15A, 15B is mounted with a set of shutter fingers 18 on the terminal part of the chute 1 inside the chassis 5A, to constitute a controlled access to the path 10 of the folds.

The set of rollers 15A is mounted on one side of the chute 1, it comes through the foot of the inlet plate slightly inside the chute 1. The set of counter-rollers 15B is pivotally mounted on the other side of the chute 1, facing the set of rollers 15A. It is carried by an axis resting in a window allowing its clearance opposite the set of rollers 15A. The set of rollers 15 is controlled by a pair of arms 19 articulated around an axis 19A carried by the upper chassis 5A. It pivots about this axis 19A between a position outside the chute 1 and without contact with the set of rollers 15A, which is its rest position, and a position where it comes to interpose in the chute 1, and in pressure against the set of rollers 15A, which is its control position.

The set of shutter fingers 18 is also pivotally mounted opposite the inlet chute 1, under the pair of sets of rollers 15A and counter-rollers 15B.

It is advantageously carried by the pair of arms 19 controlling the set of counter-rollers 15B, for the same simultaneous control. It then pivots around the axis 19A between a position of obstruction through the chute 1, which it closes, which is its rest position, and a position cleared out of the chute, which is its control position.

The set of counter-rollers 15B and the set of shutter fingers 18 being in their rest position, the fold introduced on the inlet 1, slides along the inlet tray 1A, is inserted between the sets of rollers and against -15A blocks, 15B and comes to rest on the set of shutter fingers 18 which closes the chute 1. This set of shutter fingers also acts as a jogging stop for several documents introduced at the same time into the inlet chute 1. This set of shutter fingers in its rest position isolates the inlet 1 and the internal path 10. In its control position, the set of shutter fingers is cleared and opens the chute 1, while the set of counter-rollers 15B in pressure on the set of rollers 15A allows the ply to be driven on the path 10 of the plies.

In the illustrated embodiment, the pair of arms 19 is articulated around the axis 19A carried by the upper chassis 5A, substantially at its lower and middle part. This pair of arms extends upwards from the upper chassis, on either side of the bent chute 17. Its upper end serves as a stop for the axis of the set of rollers 15B, so that this set of rollers 15B remains at a distance from the set of rollers 15A or comes into elastic pressure against it. It carries below this end the set of shutter fingers which comes, from the inner side of the elbow defined by the trough 17, to be inserted between this trough 17 and the inlet trough by insulating them or which comes to disappear at the below the 15A roller set. This pair of arms 19 extends beyond the axis of articulation in the lower chassis for its control. Each arm has a substantially L-shaped profile with the articulation axis at an intermediate point of the large leg of the L. This pair of arms 19 actuates the shutter fingers 18 and the counter-rollers 15B, giving an actuation delay to the counter-rollers 15B with respect to the fingers 18.

The folding module 11, the path 10 of the folds, the inlet 2 of the empty envelopes and their path 20, the path 30 of envelopes loaded with the wetting modules 32 and closure 33 as well as the control circuit 6 are described. in detail in patent EP-O-352 692.

The invention particularly specifies the constitution of the inlet 1 of the folds inside the same feeder 100. This document feeder comprises two loading trays 101, 102 formed inside a feeder body 103. This feeder body comprises a support plate 104 flanked by two lateral flanges 105, 106 covered respectively by two covers 107, 108. It comes to fit and snap onto the upper wall of the upper chassis 5A by the intermediate two front fixing lugs 109 and two lateral locking lugs with flexible blade not shown (see FIGS. 1A, 1B and 2).

• un fond basculant 113 surmonté d'une filière 113A constitué d'un patin lui-même recouvert d'un revêtement rugueux de séparation et articulé autour d'un axe 119 de pivotement fixé aux flasques 105 106;
• un plateau presseur 111 ajouré et articulé sur les flasques 105, 106 par deux pions de pivotement 130, à l'encontre d'un ressort de rappel 112;
• deux margeurs 136A, 136B coulissant en synchronisme au moyen d'une crémaillère non représentée, sur le plateau presseur 111;
• un arceau d'appui 139 pour le maintien en position inclinée des documents 151 dans le prolongement immédiat des margeurs 136A, 136B, fixé à ses extrémités aux flasques latéraux 105, 106;
• un galet 110 de prise de documents 151, entraîné par le moteur de commande 10A par l'intermédiaire d'un embrayage non représenté.

The loading tank 101 essentially consists of:

• a tilting bottom 113 surmounted by a die 113A consisting of a pad itself covered with a rough separation coating and articulated around a pivot axis 119 fixed to the flanges 105 106;
• a perforated pressure plate 111 articulated on the flanges 105, 106 by two pivot pins 130, against a return spring 112;
• two feeders 136A, 136B sliding in synchronism by means of a rack, not shown, on the pressure plate 111;
• a support hoop 139 for maintaining the inclined position of the documents 151 in the immediate extension of the feeders 136A, 136B, fixed at its ends to the lateral flanges 105, 106;
• a roller 110 for taking documents 151, driven by the control motor 10A by means of a clutch, not shown.

• un fond fixe 123 faisant partie intégrante de la plaque de support 104, doté d'une filière 123A constitué d'un patin lui-même recouvert d'un revêtement rugueux de séparation;
• un plateau presseur 121 ajouré et articulé sur les flasques 105, 106 par deux pions de pivotement 140, à l'encontre d'un ressort de rappel 122;
• deux margeurs 146A, 146B coulissant en synchronisme au moyen d'une crémaillère non représentée sur le plateau presseur 121;
• un arceau d'appui 149 pour le maintien en position inclinée des documents dans le prolongement immédiat des margeurs 146A, 146B, fixé à ses extrémités aux flasques latéraux 105, 106;
• un galet 120 de prise de documents 152, entraîné par le moteur de commande 10A par l'intermédiaire d'un embrayage non représenté.

The loading tank 102 is essentially constituted by:

• a fixed bottom 123 forming an integral part of the support plate 104, provided with a die 123A consisting of a shoe itself covered with a rough separation coating;
• a perforated pressure plate 121 articulated on the flanges 105, 106 by two pivot pins 140, against a return spring 122;
• two feeders 146A, 146B sliding in synchronism by means of a rack not shown on the pressure plate 121;
• a support arch 149 for keeping the documents in an inclined position in the immediate extension of the feeders 146A, 146B, fixed at its ends to the lateral flanges 105, 106;
• a roller 120 for taking documents 152, driven by the control motor 10A by means of a clutch, not shown.

The support plate 104 of the feeder body 103 is extended in its lower part by the inlet chute 1 for documents from the loading bins 101, 102 (cf. FIGS. 2 and 3).

This inlet chute contains, upstream of the drive roller 15A and its counter-roller 15B, two deflectors 114, 124 and a separator 115.

The automatic feeder is also provided with detectors 116, 126 for the presence of the respective documents 151, 152, detectors 117, 127 for passage, as well as detectors 118, 128 for multiple documents by Hall effect.

The pivoting of the bottom 113 of the loading tank 101 and the release of the pressure plate 111 are controlled simultaneously by a cam control mechanism 131.

As illustrated in FIGS. 2 to 5, this mechanism comprises a cam-path 131A articulated on a shaft 131B, secured to the flanges 105, 106, a first curved lumen 135 cooperating with a stop 134 secured to the flanges 105, 106, a second lumen curve 138 in which slides a retracting finger 137 secured to the rocking bottom 113, as well as a cam surface 131C cooperating with a control pin 111B of the presser plate 111. This cam mechanism is driven by a control motor 133 .

The motor 133 is preferably a stepping motor controlled in open loop between two limit positions defined by this stop 134 and this path 135. To reach the desired limit position, the motor 133 is launched fully in the appropriate direction.

A manual control mechanism 132 is associated with the presser plate 111 to allow loading of the tray 101 by releasing from this tray, documents 151. This mechanism comprises a loading cam 132A articulated on an axis 132B secured to the flanges 105, 106, and cooperating with a control pin 111A of the presser plate 111 via a cam surface 132C. A presser release lever 132D is mounted on this axis 132B and on the external lateral face of the hubcap 108 (cf. FIGS. 1A and 1B). In these same figures is shown a button 112A for selecting the grammage of paper, mounted on this same external lateral face. This button can occupy several notched positions corresponding to different tensions of the return spring 112 on which it acts. Likewise, the loading tank 102 is equipped with a similar manual control mechanism 142, a control lever 142D and a selection button 122A.

According to another embodiment, this independent control is motorized with a stepping or direct current motor, controlled by the control circuit 6, 62.

• en mode mixte lorsqu'un mode manuel pour le bac 101 a été choisi, et que le bac 102 n'est pas vide,
• en cyclage entre les deux bacs de chargement lorsque le mode automatique à un bac à été choisi et que les deux bacs ne sont pas vides.

A button 160 for deactivating the detectors 118, 128 of multiple documents is also provided if this detection proves unnecessary (cf. FIG. 1B). In accordance with FIG. 6, the control circuit 6 will use the passage detectors 117, 127 to position and align at the document entry stop, the documents coming from the automatic tray (s) 101, 102, or from the tray automatic 102 and manual tray 101. It acts on the control elements not shown of the rollers 110, 120 for taking documents. These elements are motors or clutches if only one motor is used for the two tanks. The document presence detectors 116, 126 are used by the control circuit via the interface 62 to ensure the operation:

• in mixed mode when a manual mode for tray 101 has been chosen, and that tray 102 is not empty,
• in cycling between the two loading bins when the automatic mode with one bin has been chosen and the two bins are not empty.

• une prise automatique, une par une, des documents déposés dans le bac 101 ou le bac 102; le chargement en temps masqué d'un bac lorsque l'autre est utilisé, permet d'éviter les arrêts nécessaires à l'approvisionnement;
• une prise automatique de documents composés de deux feuilles provenant respectivement des bacs 101, 102;
• une prise manuelle d'un document provenant du bac 101, accompagnée d'une prise automatique d'un document provenant du bac 102 (mode mixte);
• une prise manuelle d'un document provenant du bac 101.

The automatic feeder 100 previously described provides the following different operating modes:

• an automatic pick-up, one by one, of the documents deposited in the tray 101 or the tray 102; the loading in masked time of a bin when the other is used, avoids the stops necessary for supply;
• an automatic taking of documents composed of two sheets respectively from trays 101, 102;
• a manual take of a document from tray 101, accompanied by an automatic take of a document from tray 102 (mixed mode);
• taking a document from tray 101 manually.

• * un mode manuel et un mode mixte avec un démarrage immédiat ou par bouton
  • en mode manuel: le bac de chargement 102 est vide, un document 152 est introduit manuellement dans le bac de chargement 101. Le fond baculant 113 est en position ouverte et le plateau presseur 111 est en position dégagée pour placer le bac 101 en configuration manuelle (cf. fig.3). Alors la machine effectue spontanément ou après actionnement du bouton de démarrage, un cycle de pliage de ce document, de son insertion dans une enveloppe vide, et de fermeture éventuelle de l'enveloppe chargée comme indiqué dans le brevet EP-O-352 -692.
  • en mode mixte: des documents 152 sont chargés dans le bac 102. Lorsqu'un document 151 est introduit manuellement dans le bac de chargement 101, un document 152 est spontanément ou après actionnement d'un bouton de démarrage, prélevé du bac 102 pour descendre occuper une position d'entrée. La machine effectue ensuite un cycle de pliage simultané de ces deux documents, de leur insertion simultanée dans une enveloppe vide, et de fermeture éventuelle de l'enveloppe chargée.
• * un mode automatique
  Les documents 151, 152 sont chargés dans les bacs 101 et/ou 102. Lorsque le bouton de démarrage est actionné, les documents sont prélevés du bac non vide 101 ou 102, ou de ces deux bacs non vides.
  Dans cette configuration automatique du bac 101, le fond basculant 113 est en position fermée, le plateau presseur 111 et en prise, et la filière est active.
• * un mode automatique séquentiel
  Lorsqu'un bac de chargement 101, 102 n'est pas vide au moment de l'actionnement du bouton de démarrage, le fonctionnement automatique est séquentiel, c'est-à-dire avec une utilisation alternée des deux bacs.

The operating mode is selected from the control panel 200 with simple management. Keys and a display not shown allow the user to choose:

• * a manual mode and a mixed mode with an immediate start or by button
  • in manual mode: the loading tank 102 is empty, a document 152 is manually introduced into the loading tank 101. The baculant base 113 is in the open position and the pressure plate 111 is in the released position to place the tank 101 in manual configuration (see fig. 3). Then the machine spontaneously performs or after pressing the start button, a folding cycle of this document, its insertion in an empty envelope, and possible closing of the charged envelope as indicated in patent EP-O-352 -692.
  • in mixed mode : documents 152 are loaded into the tray 102. When a document 151 is manually introduced into the loading tray 101, a document 152 is spontaneously or after actuation of a start button, taken from the tray 102 to descend occupy an entry position. The machine then performs a simultaneous folding cycle of these two documents, their simultaneous insertion into an empty envelope, and possible closing of the loaded envelope.
• * an automatic mode
  The documents 151, 152 are loaded into the trays 101 and / or 102. When the start button is pressed, the documents are taken from the non-empty tray 101 or 102, or from these two non-empty trays.
  In this automatic configuration of the tank 101, the tilting bottom 113 is in the closed position, the pressure plate 111 and in engagement, and the die is active.
• * a sequential automatic mode
  When a loading tank 101, 102 is not empty when the start button is actuated, automatic operation is sequential, that is to say with alternating use of the two tanks.

The feeder 100 thus formed has a great compactness combined with an interesting ergonomics by the possible transformation of the loading tray 101 in the first row, facing the user.

Indeed, only two bins fulfill the functions of three non-transformable bins, consisting of a manual bin and two automatic loading bins.

The deflector 114 and the separator 115 can also carry the roller or a bearing surface of a lever for detecting multiple documents.

In an alternative embodiment, a single device for detecting multiple documents is arranged on the common part of document path 151, 152, identified at P in FIG. 2. In this case, a measuring lever presses through a document against a fixed bearing surface. This lever is lifted by a cam driven by a stepping motor during the feeding of the document, so as not to impede the movement of the paper. The software management provided makes it possible to stop the machine in the event of duplicate or multiple documents, on the one hand, and to determine the origin of this fault, on the other hand.

Claims (14)

1 / automatic feeder (100) machine for documents / folding and / or inserting of the type comprising a first path (10) coupled to an input (1) of documents and feeding a folder module (11) having two pockets folding (12, 13) associated with a set of folding rollers (14), a second path (20) coupled to an inlet (2) of empty envelopes and supplying an insertion module (31) itself coupled to the folding module (11) for receiving the documents delivered, a third path (30) coupled to an outlet (3) of loaded and closed envelopes, and to the insertion station, and equipped with means (32, 33) for closing of the envelopes, as well as a general control circuit (6), characterized in that the entry (1) of documents is surmounted in this automatic feeder (100), with at least two bins (101, 102) of loading likely to cooperate with this input (1) according to different operating modes, individually or in combination one with the other, by means of a set of detectors (116, 117, 118; 216, 217, 218) and drive members (133, 10A), managed by a programmed microprocessor of the control circuit (6) via an input / output interface circuit (62) housed in this feeder (100), and in that at least one loading tank (101) has a movable bottom (113) capable of occupying either a closed position for automatic introduction of documents, or an open position for introduction manual documents, via a cam control mechanism (131). 2 / Automatic feeder according to claim 1, characterized in that the first loading tank positioned closest to the control panel (200) of the machine is a transformable tank (101) of loading with tilting bottom (113). 3 / Automatic feeder according to any one of claims 1 or 2, characterized in that it consists of a body comprising a support plate (104) flanked of two lateral flanges (105, 106) covered by two respective hubcaps (107, 108), and coming to adjust and snap onto the upper wall of the upper chassis (SA) of the machine by means of two front legs (109) for fixing, and two lateral locking lugs with flexible blade. 4 / Automatic feeder according to any one of claims 1 to 3, characterized in that the loading tank (101) comprises: - A tilting bottom (113) surmounted by a die (113A) consisting of a pad itself covered with a rough separation coating, and articulated with a pivot axis (119) fixed to the flanges (105, 106 ); - a pressure plate (111) added and articulated on the flanges (105, 106) by two pivot pins (130), against a return spring (112); - two feeders (136A, 136B) sliding in synchronism by means of a rack, not shown, on the pressure plate (111); - a support arch (139) for maintaining the inclined position of the documents (151) in the immediate extension of the feeders (136A, 136B), fixed at its ends to the side plates (105, 106); - a roller (110) for taking documents (151), driven by the control motor (10A) by means of a clutch. 5 / Automatic feeder according to any one of claims 1 to 4, characterized in that the non-convertible loading tank (102) comprises: - A fixed bottom (123) forming an integral part of the support plate (104, provided with a die (123A) consisting of a pad itself covered with a rough separation coating; - a press plate (121) perforated and articulated on the flanges (105, 106) by two pivot pins (140), against a return spring (122); - two feeders (146A, 146B) sliding in synchronism by means of a rack on the pressure plate (121); - a support arch (149) for keeping the documents in an inclined position in the immediate extension of the feeders (146A, 146B), fixed at its ends to the lateral flanges (105, 106); - a roller (120) for taking documents (152), driven by the control motor (10A) via a clutch. 6 / Automatic feeder according to any one of claims 1 to 5, characterized in that the support plate (104) of the feeder body (103) is extended in its lower part by the inlet chute (1) of the documents from the loading bins (101, 102). 7 / Automatic feeder according to claim 6, characterized in that the inlet chute (1) contains deflectors (114, 124) and separators (115) of documents. 8 / Automatic feeder according to any one of claims 1 to 7, characterized in that it comprises detectors (116, 126) for the presence of documents, detectors (117, 127) for passing documents, and detectors ( 118, 128) of multiple documents. 9 / Automatic feeder according to any one of claims 1 to 8, characterized in that the pivoting of the bottom (113) of the loading tank (101) and the release of the pressure plate (111) are controlled simultaneously by a mechanism (131 ) of cam control. 10 / automatic feeder according to claim 9, characterized in that the mechanism (131) comprises a cam-path (131A) articulated on a shaft (131B, integral with the flanges (105, 106), a first curved light (135) cooperating with a stop (134) integral with the flanges (105, 106), a second curved opening (138) in which slides a retractable finger (137) integral with the tilting bottom (113), as well as a cam surface (131C ) cooperating with a control pin (111B) of the presser plate (111). 11 / Automatic feeder according to claim 10, characterized in that the cam control mechanism (131) is driven by a stepping motor (133) controlled in open loop between two limit positions defined by the stop (134) and the path (135). 12 / Automatic feeder according to any one of claims 1 to 11, characterized in that a mechanism (132) of manual control is associated with the presser plate (111) to allow loading of the tray (101) by releasing this tray, documents (151), this mechanism comprising a loading cam (132A) articulated on an axis (132B) integral with the flanges (105, 106), and cooperating with a control pin (111A) of the presser tray (111 ) via a cam surface (132C). A presser release lever (132D) being mounted on this axis (132B) and on the external lateral face of the hubcap (108). 13 / Automatic feeder according to any one of claims 1 to 12, characterized in that buttons (112A, 122A) for selecting the grammage of paper act in different notched positions on return springs (112, 122) of the platens- pressers (111, 121). 14 / Automatic feeder according to any one of claims 1 to 13, characterized in that a button (160) to deactivate the detectors (118, 128) of multiple documents is provided near the control panel (200) , selection buttons (122A, 122A) and levers (132D, 142D) for presser release.

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