EP1544141B1 - Stopper device for a sheet feeder - Google Patents

Stopper device for a sheet feeder Download PDF

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Publication number
EP1544141B1
EP1544141B1 EP20040300828 EP04300828A EP1544141B1 EP 1544141 B1 EP1544141 B1 EP 1544141B1 EP 20040300828 EP20040300828 EP 20040300828 EP 04300828 A EP04300828 A EP 04300828A EP 1544141 B1 EP1544141 B1 EP 1544141B1
Authority
EP
European Patent Office
Prior art keywords
stopper
support
axle
paper
document
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP20040300828
Other languages
German (de)
French (fr)
Other versions
EP1544141A1 (en
EP1544141B8 (en
Inventor
Henric Svensson
Frédéric Marcq
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.)
Sagemcom Broadband SAS
Original Assignee
Sagem Communications SAS
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 Sagem Communications SAS filed Critical Sagem Communications SAS
Publication of EP1544141A1 publication Critical patent/EP1544141A1/en
Publication of EP1544141B1 publication Critical patent/EP1544141B1/en
Application granted granted Critical
Publication of EP1544141B8 publication Critical patent/EP1544141B8/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/0684—Rollers or like rotary separators on moving support, e.g. pivoting, for bringing the roller or like rotary separator into contact with the pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/0615—Rollers or like rotary separators reciprocating and rotatable in one direction only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/34—Article-retaining devices controlling the release of the articles to the separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/30—Supports; Subassemblies; Mountings thereof
    • B65H2402/31—Pivoting support means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/15—Roller assembly, particular roller arrangement
    • B65H2404/152—Arrangement of roller on a movable frame
    • B65H2404/1521—Arrangement of roller on a movable frame rotating, pivoting or oscillating around an axis, e.g. parallel to the roller axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/70—Other elements in edge contact with handled material, e.g. registering, orientating, guiding devices
    • B65H2404/72—Stops, gauge pins, e.g. stationary
    • B65H2404/722—Stops, gauge pins, e.g. stationary movable in operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/30—Facilitating or easing
    • B65H2601/32—Facilitating or easing entities relating to handling machine
    • B65H2601/322—Replenishing

Definitions

  • the invention relates to a stopper device for a document loader.
  • the field of the invention is that of scrolling scanners. More particularly, the field of the invention is that of devices for loading and insertion of paper into the paper drive circuit of such scrolling scanners.
  • An object of the invention is to protect a paper drive circuit, and in particular a deliassage system, a scanner device scrolling abrupt introductions and or important documents.
  • Another object of the invention is to simplify the paper loading mechanism of a scrolling scanner to make its manufacture and assembly simpler.
  • Another object of the invention is to make the loading mechanism of the paper more reliable in a scrolling scanner.
  • Another object of the invention is to reduce the manufacturing costs of a paper loading device for a scroll scanner.
  • a stopper which is located at the end of a pivoting arm about an axis parallel to the axes of the paper drive rollers.
  • the axes of the rollers are fixed to a support whose position changes during the paper drive cycle.
  • this support comprises a lug which is in direct contact with the arm supporting the stopper.
  • Each movement of the support then involves a movement of the arm supporting the stopper by direct transmission of the movement of the support via the lug.
  • the lug is an integral part of the support, both being from the same mold during manufacture.
  • a stopper is provided which limits the abrupt and / or important introduction of paper into the paper drive circuit in one piece.
  • the kinematics of the stopper is provided without additional parts since the support, in direct contact with the stopper, is in any case necessary for the operation of the charger.
  • the invention is also characterized in that when the support is in the high position, the stopper is in the low position.
  • the invention is also characterized in that an end of the stopper brought, during a paper drive cycle, to be in contact with the paper, or the bottom of a magazine of the loader, has a profile adapted to not damage the paper.
  • the invention is also characterized in that the stopper device descends by gravity, the lug of the support countering the descent of the stopper, the position of the stopper being determined by the position of the support.
  • the invention is also characterized in that the position of the support is determined by the direction of rotation of a motor.
  • the invention is also characterized in that the end of the stopper for blocking documents moves between axes of drive rollers.
  • the invention is also characterized in that the ergot is a protrusion of the support, this protrusion being molded at the same time as said support.
  • the figure 1 shows the paper feeder portion of a scrolling scanner viewed in profile in its rest position.
  • the Figures 2 to 8 show identical elements but at different times of a paper drive cycle in the scrolling scanner. Identical references therefore designate identical elements.
  • a loader of a scanner scrolling device referred to here as the scanner.
  • Such an apparatus comprises a charger device enabling the insertion of document paper into a driving circuit from which a digital copy must be obtained.
  • a stopper device according to the invention can be used on any device requiring a document loading device.
  • documents are considered to be a bundle of paper.
  • the first element of the document driving circuit is therefore a deliassage system for separating the sheets of paper forming the bundle.
  • the invention makes it possible in particular to protect this system of deliassage against the brutal and or important introductions of documents.
  • the figure 1 shows a cylindrical roller 101 rotatable about an axis 102 fixed to a support 103 of the device 104 for driving the paper of the loader part.
  • the shaft 102 is also called a shaft 102.
  • the shaft 102 has on its outer periphery a key 105 cooperating with a key 106 of the inner periphery of the roller 101 for the rotational drive of the roller 101.
  • the figure 1 shows a cylindrical roller 107 rotatable about an axis 108 fixed to the support 103.
  • the roller 107 materializes the entry of the feeder system device of the charger.
  • the shaft 108 is also called a shaft 108.
  • the shaft 108 has on its outer periphery a key 109 cooperating with a key 110 of the inner periphery of the roller 107 for the rotational drive of the roller 107.
  • the shafts 102 and 108 are parallel and rotated by a motor 111.
  • the motor 111 drives one of the two shafts, for example the shaft 108 which in turn drives the shaft 102 through a set of gears (not shown) whose reduction ratio is such that the roller 107 rotates faster than the roller 101.
  • the two rollers, at a given moment, have the same direction of rotation.
  • the elements 101-103 and 105-110 constitute the device 104 drive the scanner loader.
  • the axis 108 is also fixed to the not shown frame of the scanner, which makes the support 103 mobile in rotation about the axis 108.
  • the figure 1 shows a stopper 112 attached to an axis 113 parallel to the axes 102 and 108.
  • the axis 113 is fixed to the scanner frame.
  • the stopper 112 is formed by a longitudinal arm 114 extending, perpendicular to the axis 113, at least from the axis 113 to between the axes 102 and 108.
  • the end of the arm 114 opposite the axis 113 comprises a wall 115 forming an angle of about 90 ° with the arm 114. In practice this angle is such that when the device 104 is in the upper position the end 116 of the stopper 112 opposite the axis 113 is in contact with the bottom a tray 117 paper scanner.
  • the stopper 112 is never in contact with the axes 102, 108, or with the rollers 101, 107. In practice the angle of 90 ° can therefore vary by plus or minus 20%.
  • the figure 1 shows that the support 103 has a lug 118 on its outer surface.
  • the lug 118 is located under the arm 114, in contact therewith, and between the axes 108 and 113.
  • the lug 118 is an outgrowth of the support 103.
  • the lug 118 and the support 103 forms a single piece.
  • the figure 1 corresponds to a state of rest in the paper drive cycle. It is when the scanner is in this state that a user can introduce sheets 119 and 120 into the tray 117 of the scanner. In this example only two sheets are presented, but in practice the tray 117 can contain any number of sheets, typically up to 50.
  • the support 103 In the state of rest the support 103 is thus in the high position which allows a user to introduce leaves into the space thus created between the roller 101 and the bottom of the tray 117.
  • the pin 118 As the support 103 is in the up position , the pin 118, from its position relative to the axis 108 of rotation of the support, is it in the low position. Indeed the roller 101 and the lug 118 are located on either side of the axis 108 around which the support 103 moves.
  • the pin 118 rises, and vice versa.
  • the role of the lug 118 is to lift the stopper 112 according to the movements of the support 103. By mounting, the stopper 112 moves under the effect of its own weight which, by driving it downwards, keeps it in position. contact with 118.
  • the stopper 112 is therefore permanently driven downwards, and is stopped only by the pin 118. In the idle state, the stopper 112 is therefore in its lowest position which is such that that the end 116 of the stopper 112 is in contact with the bottom of the tray 117. In this position the stopper 112, and in particular its wall 115, is an obstacle to the insertion of sheets in the tray 117. A user therefore introduces leaves in the tray 117 until these sheets come into abutment on the wall 115 of the stopper 112.
  • the figure 2 corresponds to the start of the scanner.
  • the motor 111 then rotates in a clockwise direction, driving the support 103 downwards until the roller 101 comes into contact with the sheet 119.
  • the lug 118 rises, bringing with it the stopper.
  • the stopper is in the up position, and nothing hinders the introduction of a sheet of paper into the paper drive circuit of the scanner.
  • the figure 2 shows that the roller 101, driven by its shaft frictionally engages the sheet 119 to the roller 107.
  • the motor 111 drives the shafts 102 and 108 in rotation in the clockwise direction.
  • the figure 3 shows that the roller 107, driven by its shaft 108, in turn drives the sheet 119 by friction.
  • the reduction ratio existing between the shafts 108 and 102 causes the shaft 108 to rotate faster than the shaft 102.
  • the roller 101 is advanced relative to the shaft 102.
  • the figure 4 shows that the sheet 119 is taken by a rolling mill 121 located beyond the roller 107 and the axis 113, in the paper drive circuit of the scanner.
  • the drive speed of the mill 121 is greater than that of the roller 107, which thereby rotates faster than its drive shaft 108.
  • the roller 107 advances in relation to the shaft 108.
  • the figure 5 shows that when the rear edge 122 of the sheet 119 leaves the roller 101, the latter stops rotating. This stop allows the shaft 102 to catch up on the roller 101.
  • the support 103 due to the disappearance of the sheet 119 goes down a little more, which brings the roller 101 in contact with the sheet 120 which was initially located under sheet 119. In practice, the more the number of sheets decreases, the more the support 103 goes down, and the more the stopper 112 rises.
  • the figure 6 shows that when the rear edge 122 of the sheet 119 leaves the roller 107, it stops rotating. This stop allows the shaft 108 to catch up on the roller 107.
  • the figure 7 shows that the shaft 102 which has finally caught up again causes the roller 101 which frictionally drives the sheet 120 to the roller 107. During this time the tree to catch up and the continuous drive cycle as the figure 2 .
  • the figure 8 shows that a scanner has a sensor 123 for detecting the presence of a sheet in the paper drive circuit. This detection is timed, which means that if, after a predetermined time, the sensor no longer detects a sheet, it means that the tray 117 is empty and the scanning operation is completed. This predetermined time is of the order of one second This triggers the reversal of the direction of rotation of the motor 111, which has the effect of lifting the support 103, and therefore the lowering of the lug 118. As the lug 118 descends, the stopper 112, which bears on the lug 118, also descends until its end 116 is in contact with the bottom of the tray 117, thus preventing the abrupt introduction or important, paper in the paper drive circuit.
  • the charger device then returned to a state of rest as described for the figure 1 .
  • the axis 113 is located downstream of the axis 108 on the path of the paper.
  • the lug 118 is located between the axes 113 and 108 so as to act on the part of the stopper located between the axes 113 and 108.
  • FIGs 9 and 10 illustrate a variant outside the scope of the invention in which an axis 901, equivalent to the axis 113, is located upstream of the axis 108 on the path of the paper.
  • identical references designate identical elements.
  • the figure 9 shows a stopper 902, equivalent to the stopper 112, fixed to the axis 901.
  • the stopper 902 comprises a wall 903, equivalent to the wall 115, which extends an arm 904 of the stopper 902.
  • the arm 904 extends from the axis 901 to the axis 108, the wall 903 forming an angle of about 90 ° with the arm 904.
  • the wall 903 rests on the bottom of the tray 117, between the axis 108 and the axis 102, when the base 103 is in the high position, that is to say when the charger is at rest.
  • the stopper 902 also comprises an arm 905 which extends in a direction opposite to the arm 904. The arm 905 then cooperates with a lug 906 of the support 103 for the displacement of the stopper 902.
  • the figure 9 shows a charger in the rest position, that is with the support 103 in the high position. When the loader is in this position, the stopper 902 descends by gravity, and the wall 903 comes into contact with the bottom of the tray 117.
  • the stopper 906 is located upstream of the axis 901 on the path of the paper.
  • the figure 10 shows the support 103 in the down position.
  • the lug 906 rests on the top of the arm 905, causing the rotation of the stopper 902 about the axis 901, and thus the mounting of the arm 904 and the 903 wall as the arm 905 descends under the pressure of the support 103, pressure applied via the lug 906.
  • the result is identical and sought after.
  • This result is a means of sealing the access to the paper drive circuit, and in particular to the system of displacement, depending on the position of the support 103 of a document feeder.
  • the lug 906 is molded at the same time as the support 103.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Pile Receivers (AREA)

Description

DOMAINE TECHNIQUE DE L'INVENTIONTECHNICAL FIELD OF THE INVENTION

L'invention a pour objet un dispositif stoppeur pour un chargeur de document.The invention relates to a stopper device for a document loader.

Le domaine de l'invention est celui des scanners à défilement. Plus particulièrement, le domaine de l'invention est celui des dispositifs de chargement et d'insertion du papier dans le circuit d'entraînement du papier de tels scanners à défilement.The field of the invention is that of scrolling scanners. More particularly, the field of the invention is that of devices for loading and insertion of paper into the paper drive circuit of such scrolling scanners.

Un but de l'invention est de protéger un circuit d'entraînement du papier, et en particulier un système de deliassage, d'un dispositif scanner à défilement des introductions brutales et ou importantes de documents.An object of the invention is to protect a paper drive circuit, and in particular a deliassage system, a scanner device scrolling abrupt introductions and or important documents.

Un autre but de l'invention est de simplifier le mécanisme de chargement de papier d'un scanner à défilement afin de rendre sa fabrication et son assemblage plus simple.Another object of the invention is to simplify the paper loading mechanism of a scrolling scanner to make its manufacture and assembly simpler.

Un autre but de l'invention est de rendre plus fiable le mécanisme de chargement du papier dans un scanner à défilement.Another object of the invention is to make the loading mechanism of the paper more reliable in a scrolling scanner.

Un autre but de l'invention est de réduire les coûts de fabrication d'un dispositif de chargement de papier pour un scanner à défilement.Another object of the invention is to reduce the manufacturing costs of a paper loading device for a scroll scanner.

Dans l'état de la technique, on connaît des dispositifs visant à empêcher l'introduction de papier dans un circuit d'entraînement de papier de scanner à défilement. On connaît notamment le document US 5.984.298 A qui décrit la mise en oeuvre d'un stoppeur linéaire librement mobile en rotation autour d'un axe. Une feuille de papier peut donc déplacer un tel stoppeur au cours de son parcours, sauf si ce stoppeur est verrouillé par un élément du mécanisme. Cet élément est soit un ressort (figure 3 du document), soit un dispositif beaucoup plus complexe (figure 4 du document) mettant en oeuvre un embrayage. Le document US 5.984.298 A décrit donc deux mises en oeuvres complexes, car elles préconisent l'utilisation d'un ressort ou d'un embrayage, qui sont des pièces difficiles à mettre en place. Ces mises en oeuvres sont aussi peu fiables. En effet la raideur du ressort évolue avec le temps ce qui diminue sont efficacité dans la fonction de blocage qui est la sienne. Un embrayage est une pièce complexe avec de multiples possibilités de blocage et d'usure prématurées.In the state of the art, devices are known to prevent the introduction of paper into a scroll scanner paper drive circuit. The document is particularly known US 5,984,298 A which describes the implementation of a linear stopper freely movable in rotation about an axis. A sheet of paper can therefore move such a stopper during its journey, unless the stopper is locked by an element of the mechanism. This element is either a spring ( figure 3 of the document), a much more complex device ( figure 4 of the document) implementing a clutch. The document US 5,984,298 A describes two complex implementations, because they recommend the use of a spring or a clutch, which are difficult parts to implement. These implementations are also unreliable. Indeed the stiffness of the spring changes with time which decreases their efficiency in the blocking function that is his. A clutch is a complex piece with multiple possibilities of blocking and premature wear.

Cette solution de l'état de l'art est donc complexe à mettre en oeuvre, coûteuse, et non fiable.This solution of the state of the art is therefore complex to implement, expensive, and unreliable.

Dans l'état de la technique on connaît aussi le document US 2001/015519 A1 qui enseigne aussi un dispositif chargeur comportant, en option, un limiteur d'insertion de papier. Cependant ce limiteur est commandé par l'intermédiaire d'au moins un jeu d'engrenages et d'un bras actionneur, ce qui rend sa mise en place lors de l'assemblage du scanner, et sa maintenance lors de l'utilisation du scanner, compliquées.In the state of the art, the document is also known US 2001/015519 A1 which also teaches a charger device optionally having a paper insertion limiter. However this limiter is controlled by means of at least one set of gears and an actuator arm, which makes its installation during the assembly of the scanner, and its maintenance when using the scanner , complicated.

Il apparaît donc que les solutions de l'état de la technique pour limiter l'introduction importante ou brutale de documents dans un circuit d'entraînement du papier d'un scanner à défilement soient toutes complexes, coûteuses, voire fragiles.It therefore appears that the solutions of the state of the art to limit the large or sudden introduction of documents in a paper drive circuit of a scrolling scanner are all complex, expensive, even fragile.

DESCRIPTION GENERALE DE L'INVENTIONGENERAL DESCRIPTION OF THE INVENTION

Dans l'invention on résout ces problèmes grâce à un stoppeur qui est situé au bout d'un bras pivotant autour d'un axe parallèle aux axes des galets d'entraînement du papier. Les axes des galets sont fixés à un support dont la position change au cours du cycle d'entraînement du papier. Dans l'invention ce support comporte un ergot qui est en contact direct avec le bras supportant le stoppeur. Chaque mouvement du support implique alors un mouvement du bras supportant le stoppeur par transmission direct du mouvement du support via l'ergot.In the invention, these problems are solved by means of a stopper which is located at the end of a pivoting arm about an axis parallel to the axes of the paper drive rollers. The axes of the rollers are fixed to a support whose position changes during the paper drive cycle. In the invention this support comprises a lug which is in direct contact with the arm supporting the stopper. Each movement of the support then involves a movement of the arm supporting the stopper by direct transmission of the movement of the support via the lug.

Dans la pratique l'ergot fait partie intégrante du support, les deux étant issus du même moule lors de la fabrication. Il en va de même pour le bras et le stoppeur qui sont une seule et même pièce globalement appelée stoppeur.In practice, the lug is an integral part of the support, both being from the same mold during manufacture. The same applies to the arm and the stopper, which are one and the same piece generally called a stopper.

Dans l'invention on réalise donc un stoppeur limitant l'introduction brutale et ou importante de papier dans le circuit d'entraînement du papier en une seule pièce. De plus, dans l'invention, la cinématique du stoppeur est assurée sans pièce supplémentaire puisque le support, en contact direct avec le stoppeur, est de toute façon nécessaire au fonctionnement du chargeur.In the invention, therefore, a stopper is provided which limits the abrupt and / or important introduction of paper into the paper drive circuit in one piece. In addition, in the invention, the kinematics of the stopper is provided without additional parts since the support, in direct contact with the stopper, is in any case necessary for the operation of the charger.

L'invention a donc comme objet un chargeur de document comportant

  • un dispositif stoppeur (112, 902),
  • un support (103) mobile autour d'un premier axe (108), lequel support comporte un premier galet (107) mobile en rotation autour du premier axe (108) et matérialisant l'entrée d'un système de déliassage du chargeur ainsi qu'un deuxième galet (101) mobile en rotation autour d'un deuxième axe (102) parallèle au premier axe (108),
    caractérisé en ce que
    le dispositif stoppeur est mobile autour d'un troisième axe (113, 901) parallèle au premier axe et situé en aval du premier axe sur le cheminement du document, le dispositif stoppeur étant formé par un bras longitudinal (114) s'étendant perpendiculairement au troisième axe, l'extrémité dudit bras opposé au troisième axe comportant une paroi (115) formant un angle d'environ 90° avec ledit bras, le dispositif stoppeur étant mobile entre aux moins deux positions:
    • une position basse dans laquelle une extrémité du stoppeur empêche l'introduction de document dans le système de déliassage du chargeur,
    • une position haute dans laquelle une feuille entraînée par des galets du chargeur pénètre dans le système de déliassage du chargeur,
    • le dispositif stoppeur passant de la position haute à la position basse en étant actionné directement par un ergot (118) du support du chargeur, ledit ergot étant en contact direct avec le bras.
The subject of the invention is therefore a document feeder comprising
  • a stopper device (112, 902),
  • a support (103) movable about a first axis (108), which support comprises a first roller (107) rotatable about the first axis (108) and embodying the entrance of a deliming system of the charger and a second roller (101) rotatable about a second axis (102) parallel to the first axis (108),
    characterized in that
    the stopper device is movable about a third axis (113, 901) parallel to the first axis and located downstream of the first axis on the path of the document, the stopper device being formed by a longitudinal arm (114) extending perpendicular to the third axis, the end of said arm opposite the third axis having a wall (115) forming an angle of approximately 90 ° with said arm, the stopper device being movable between at least two positions:
    • a low position in which one end of the stopper prevents the introduction of documents into the shredder system of the loader,
    • a high position in which a sheet driven by rollers of the loader enters the shredder system of the loader,
    • the stopper device passing from the high position to the low position being actuated directly by a lug (118) of the magazine support, said lug being in direct contact with the arm.

Avantageusement l'invention est aussi caractérisée en ce que lorsque le support est en position haute, le stoppeur est en position basse.Advantageously, the invention is also characterized in that when the support is in the high position, the stopper is in the low position.

Avantageusement l'invention est aussi caractérisée en ce qu'une extrémité du stoppeur amenée, au cours d'un cycle d'entraînement du papier, à être en contact avec le papier, ou le fond d'un bac du chargeur, a un profil adapté pour ne pas abîmer le papier.Advantageously, the invention is also characterized in that an end of the stopper brought, during a paper drive cycle, to be in contact with the paper, or the bottom of a magazine of the loader, has a profile adapted to not damage the paper.

Avantageusement l'invention est aussi caractérisée en ce que le dispositif stoppeur descend par gravité, l'ergot du support contrant la descente du stoppeur, la position du stoppeur étant déterminée par la position du support.Advantageously, the invention is also characterized in that the stopper device descends by gravity, the lug of the support countering the descent of the stopper, the position of the stopper being determined by the position of the support.

Avantageusement l'invention est aussi caractérisée en ce que la position du support est déterminée par le sens de rotation d'un moteur.Advantageously, the invention is also characterized in that the position of the support is determined by the direction of rotation of a motor.

Avantageusement l'invention est aussi caractérisée en ce que l'extrémité du stoppeur servant au blocage des documents se déplace entre des axes de galets d'entraînement.Advantageously, the invention is also characterized in that the end of the stopper for blocking documents moves between axes of drive rollers.

Avantageusement l'invention est aussi caractérisée en ce que l'ergot est une excroissance du support, cette excroissance étant moulée en même temps que ledit support.Advantageously, the invention is also characterized in that the ergot is a protrusion of the support, this protrusion being molded at the same time as said support.

BREVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

  • Figures 1 à 8: illustrations, vues de profiles, des éléments d'un chargeur selon l'invention et de leur coopération au cours d'un cycle d'entraînement de papier. Figures 1 to 8 : illustrations, views of profiles, elements of a charger according to the invention and their cooperation during a paper training cycle.
  • Figures 9 et 10: illustrations, vues de profiles, d'une variante d'un chargeur hors du cadre de l'invention. Figures 9 and 10 : illustrations, views of profiles, a variant of a charger outside the scope of the invention.
DESCRIPTION DES FORMES DE REALISATION PREFEREES DE L'INVENTIONDESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE INVENTION

La figure 1 montre la partie chargeur de papier d'un scanner à défilement vue de profile dans sa position de repos. Les figures 2 à 8 montrent des éléments identiques mais à des instants différents d'un cycle d'entraînement du papier dans le scanner à défilement. Des références identiques désignent donc des éléments identiques.The figure 1 shows the paper feeder portion of a scrolling scanner viewed in profile in its rest position. The Figures 2 to 8 show identical elements but at different times of a paper drive cycle in the scrolling scanner. Identical references therefore designate identical elements.

Pour cette description on considère un chargeur d'un appareil scanner à défilement, désigné ici comme le scanner. Un tel appareil comporte un dispositif chargeur permettant l'introduction dans un circuit d'entraînement du papier de document dont il faut obtenir une copie numérique. Dans la pratique, un dispositif stoppeur selon l'invention peut être utilisé sur tout appareil requérant un dispositif de chargement de documents. De même on considère que des documents sont constitués par une liasse de papier. Le premier élément du circuit d'entraînement des documents est donc un système de déliassage permettant de séparer les feuilles de papier formant la liasse. L'invention permet en particulier de protéger ce système de déliassage contre les introductions brutales et ou importantes de documents.For this description we consider a loader of a scanner scrolling device, referred to here as the scanner. Such an apparatus comprises a charger device enabling the insertion of document paper into a driving circuit from which a digital copy must be obtained. In practice, a stopper device according to the invention can be used on any device requiring a document loading device. Similarly, documents are considered to be a bundle of paper. The first element of the document driving circuit is therefore a deliassage system for separating the sheets of paper forming the bundle. The invention makes it possible in particular to protect this system of deliassage against the brutal and or important introductions of documents.

La figure 1 montre un galet 101 cylindrique mobile en rotation autour d'un axe 102 fixé à un support 103 du dispositif 104 d'entraînement du papier de la partie chargeur. L'axe 102 est aussi appelé un arbre 102. L'arbre 102 comporte sur son pourtour extérieur une clavette 105 coopérant avec une clavette 106 du pourtour intérieur du galet 101 pour l'entraînement en rotation du galet 101.The figure 1 shows a cylindrical roller 101 rotatable about an axis 102 fixed to a support 103 of the device 104 for driving the paper of the loader part. The shaft 102 is also called a shaft 102. The shaft 102 has on its outer periphery a key 105 cooperating with a key 106 of the inner periphery of the roller 101 for the rotational drive of the roller 101.

La figure 1 montre un galet 107 cylindrique mobile en rotation autour d'un axe 108 fixé au support 103. Le galet 107 matérialise l'entrée du dispositif système de déliassage du chargeur. L'axe 108 est aussi appelé un arbre 108. L'arbre 108 comporte sur son pourtour extérieur une clavette 109 coopérant avec une clavette 110 du pourtour intérieur du galet 107 pour l'entraînement en rotation du galet 107.The figure 1 shows a cylindrical roller 107 rotatable about an axis 108 fixed to the support 103. The roller 107 materializes the entry of the feeder system device of the charger. The shaft 108 is also called a shaft 108. The shaft 108 has on its outer periphery a key 109 cooperating with a key 110 of the inner periphery of the roller 107 for the rotational drive of the roller 107.

Les arbres 102 et 108 sont parallèles et entraînés en rotation par un moteur 111. Dans la pratique le moteur 111 entraîne l'un des deux arbres, par exemple l'arbre 108 qui à son tour entraîne l'arbre 102 par l'intermédiaire d'un jeu de pignons (non représenté) dont le rapport de réduction est tel que la galet 107 tourne plus vite que le galet 101. Les deux galets, à un instant donné, ont le même sens de rotation.The shafts 102 and 108 are parallel and rotated by a motor 111. In practice the motor 111 drives one of the two shafts, for example the shaft 108 which in turn drives the shaft 102 through a set of gears (not shown) whose reduction ratio is such that the roller 107 rotates faster than the roller 101. The two rollers, at a given moment, have the same direction of rotation.

Les éléments 101-103 et 105-110 constituent le dispositif 104 d'entraînement du chargeur du scanner.The elements 101-103 and 105-110 constitute the device 104 drive the scanner loader.

L'axe 108 est aussi fixé au châssis non représenté du scanner, ce qui rend le support 103 mobile en rotation autour de l'axe 108.The axis 108 is also fixed to the not shown frame of the scanner, which makes the support 103 mobile in rotation about the axis 108.

La figure 1 montre un stoppeur 112 fixé à un axe 113 parallèle aux axes 102 et 108. L'axe 113 est fixé au châssis du scanner. Le stoppeur 112 est formé par un bras 114 longitudinal s'étendant, perpendiculairement à l'axe 113, au moins de l'axe 113 jusque entre les axes 102 et 108. L'extrémité du bras 114 opposée à l'axe 113 comporte une paroi 115 formant un angle d'environ 90° avec le bras 114. Dans la pratique cet angle est tel que lorsque le dispositif 104 est en position haute l'extrémité 116 du stoppeur 112 opposée à l'axe 113 est en contact avec le fond d'un bac 117 à papier du scanner. Le stoppeur 112 n'est jamais en contact avec les axes 102, 108, ou avec les galets 101, 107. Dans la pratique l'angle de 90° peut donc varier de plus ou moins 20 %.The figure 1 shows a stopper 112 attached to an axis 113 parallel to the axes 102 and 108. The axis 113 is fixed to the scanner frame. The stopper 112 is formed by a longitudinal arm 114 extending, perpendicular to the axis 113, at least from the axis 113 to between the axes 102 and 108. The end of the arm 114 opposite the axis 113 comprises a wall 115 forming an angle of about 90 ° with the arm 114. In practice this angle is such that when the device 104 is in the upper position the end 116 of the stopper 112 opposite the axis 113 is in contact with the bottom a tray 117 paper scanner. The stopper 112 is never in contact with the axes 102, 108, or with the rollers 101, 107. In practice the angle of 90 ° can therefore vary by plus or minus 20%.

La figure 1 montre que le support 103 comporte un ergot 118 sur sa surface externe. L'ergot 118 est situé sous le bras 114, en contact avec celui ci, et entre les axes 108 et 113. Dans la pratique l'ergot 118 est une excroissance du support 103. En d'autre termes, l'ergot 118 et le support 103 forme une seule et même pièce.The figure 1 shows that the support 103 has a lug 118 on its outer surface. The lug 118 is located under the arm 114, in contact therewith, and between the axes 108 and 113. In practice, the lug 118 is an outgrowth of the support 103. In other words, the lug 118 and the support 103 forms a single piece.

La figure 1 correspond à un état de repos dans le cycle d'entraînement du papier. C'est lorsque que le scanner est dans cet état qu'un utilisateur peut introduire des feuilles 119 et 120 dans la bac 117 du scanner. Dans cet exemple on ne présente que deux feuilles, mais dans la pratique le bac 117 peut contenir un nombre quelconque de feuilles, typiquement jusqu'à 50.The figure 1 corresponds to a state of rest in the paper drive cycle. It is when the scanner is in this state that a user can introduce sheets 119 and 120 into the tray 117 of the scanner. In this example only two sheets are presented, but in practice the tray 117 can contain any number of sheets, typically up to 50.

Dans l'état de repos le support 103 est donc en position haute ce qui permet à un utilisateur d'introduire des feuilles dans l'espace ainsi créé entre le galet 101 et le fond du bac 117. Comme le support 103 est en position haute, l'ergot 118, de part sa position par rapport à l'axe 108 de rotation du support, est lui en position basse. En effet le galet 101 et l'ergot 118 sont situé de part et d'autre de l'axe 108 autour duquel le support 103 se meut. Quand le galet 101 descend, l'ergot 118 monte, et vice et versa. Le rôle de l'ergot 118 est de soulever le stoppeur 112 en fonction des mouvements du support 103. Par montage, le stoppeur 112 se déplace sous l'effet de son propre poids qui, en l'entraînant vers le bas, le maintient en contact avec l'ergot 118. Le stoppeur 112 est donc en permanence entraîné vers le bas, et n'est arrêté que par l'ergot 118. Dans l'état de repos, le stoppeur 112 est donc dans sa position la plus basse qui est telle que l'extrémité 116 du stoppeur 112 est en contact avec le fond du bac 117. Dans cette position le stoppeur 112, et en particulier sa paroi 115, constitue un obstacle à l'insertion de feuilles dans le bac 117. Un utilisateur introduit donc des feuilles dans le bac 117 jusqu'à ce que ces feuilles arrivent en butée sur la paroi 115 du stoppeur 112.In the state of rest the support 103 is thus in the high position which allows a user to introduce leaves into the space thus created between the roller 101 and the bottom of the tray 117. As the support 103 is in the up position , the pin 118, from its position relative to the axis 108 of rotation of the support, is it in the low position. Indeed the roller 101 and the lug 118 are located on either side of the axis 108 around which the support 103 moves. When the roller 101 descends, the pin 118 rises, and vice versa. The role of the lug 118 is to lift the stopper 112 according to the movements of the support 103. By mounting, the stopper 112 moves under the effect of its own weight which, by driving it downwards, keeps it in position. contact with 118. The stopper 112 is therefore permanently driven downwards, and is stopped only by the pin 118. In the idle state, the stopper 112 is therefore in its lowest position which is such that that the end 116 of the stopper 112 is in contact with the bottom of the tray 117. In this position the stopper 112, and in particular its wall 115, is an obstacle to the insertion of sheets in the tray 117. A user therefore introduces leaves in the tray 117 until these sheets come into abutment on the wall 115 of the stopper 112.

La figure 2 correspond à la mise en marche du scanner. Le moteur 111 tourne alors dans le sens horaire entraînant le support 103 vers le bas jusqu'à ce que le galet 101 arrive au contact de la feuille 119. Au court de la descente du support 103, l'ergot 118 remonte entraînant avec lui le stoppeur. Lorsque le galet 101 arrive en contact avec la feuille 119 le stoppeur est en position haute, et plus rien ne gêne l'introduction d'une feuille de papier dans le circuit d'entraînement de papier du scanner. La figure 2 montre que le galet 101, entraîné par son arbre engage par friction la feuille 119 vers le rouleau 107.The figure 2 corresponds to the start of the scanner. The motor 111 then rotates in a clockwise direction, driving the support 103 downwards until the roller 101 comes into contact with the sheet 119. During the lowering of the support 103, the lug 118 rises, bringing with it the stopper. When the roller 101 comes into contact with the sheet 119 the stopper is in the up position, and nothing hinders the introduction of a sheet of paper into the paper drive circuit of the scanner. The figure 2 shows that the roller 101, driven by its shaft frictionally engages the sheet 119 to the roller 107.

Pour la description des figures 3 à 7, le moteur 111 entraîne les arbres 102 et 108 en rotation dans le sens horaire.For the description of Figures 3 to 7 , the motor 111 drives the shafts 102 and 108 in rotation in the clockwise direction.

La figure 3 montre que le rouleau 107, entraîné par son arbre 108, entraîne, à son tour et par friction la feuille 119. Le rapport de réduction existant entre les arbres 108 et 102 fait que l'arbre 108 tourne plus vite que l'arbre 102. La feuille 119, entraîné par le galet 107, entraîne donc le galet 101 à une vitesse plus grande que celle imposée par son arbre 102. Le galet 101 prend de l'avance par rapport à l'arbre 102.The figure 3 shows that the roller 107, driven by its shaft 108, in turn drives the sheet 119 by friction. The reduction ratio existing between the shafts 108 and 102 causes the shaft 108 to rotate faster than the shaft 102. The sheet 119, driven by the roller 107, therefore drives the roller 101 at a speed greater than that imposed by its shaft 102. The roller 101 is advanced relative to the shaft 102.

La figure 4 montre que la feuille 119 est prise par un laminoir 121 situé au delà du galet 107 et de l'axe 113, dans le circuit d'entraînement du papier du scanner. La vitesse d'entraînement du laminoir 121 est supérieur à celle du galet 107, qui de ce fait tourne plus vite que son arbre 108 d'entraînement. Le galet 107 prend de l'avance par rapport à l'arbre 108.The figure 4 shows that the sheet 119 is taken by a rolling mill 121 located beyond the roller 107 and the axis 113, in the paper drive circuit of the scanner. The drive speed of the mill 121 is greater than that of the roller 107, which thereby rotates faster than its drive shaft 108. The roller 107 advances in relation to the shaft 108.

La figure 5 montre que lorsque le bord 122 arrière de la feuille 119 quitte le galet 101, celui-ci arrête de tourner. Cet arrêt permet à l'arbre 102 de rattraper son retard sur le galet 101. Le support 103, du fait de la disparition de la feuille 119 descend un peu plus, ce qui amène le galet 101 en contact avec la feuille 120 qui était initialement située sous la feuille 119. Dans la pratique, plus le nombre de feuilles diminue, plus le support 103 descend, et plus le stoppeur 112 monte.The figure 5 shows that when the rear edge 122 of the sheet 119 leaves the roller 101, the latter stops rotating. This stop allows the shaft 102 to catch up on the roller 101. The support 103, due to the disappearance of the sheet 119 goes down a little more, which brings the roller 101 in contact with the sheet 120 which was initially located under sheet 119. In practice, the more the number of sheets decreases, the more the support 103 goes down, and the more the stopper 112 rises.

La figure 6 montre que lorsque le bord 122 arrière de la feuille 119 quitte le galet 107, celui-ci s'arrête de tourner. Cet arrêt permet à l'arbre 108 de rattraper son retard sur le galet 107.The figure 6 shows that when the rear edge 122 of the sheet 119 leaves the roller 107, it stops rotating. This stop allows the shaft 108 to catch up on the roller 107.

La figure 7 montre que l'arbre 102 qui a finalement rattrapé son retard entraîne à nouveau le galet 101 qui entraîne par friction la feuille 120 vers le galet 107. Pendant ce temps l'arbre à rattraper son retard et le cycle d'entraînement continu comme à la figure 2.The figure 7 shows that the shaft 102 which has finally caught up again causes the roller 101 which frictionally drives the sheet 120 to the roller 107. During this time the tree to catch up and the continuous drive cycle as the figure 2 .

La figure 8 montre qu'un scanner comporte un capteur 123 permettant de détecter la présence d'une feuille dans le circuit d'entraînement du papier. Cette détection est temporisée, ce qui signifie que si au bout d'un temps prédéterminé le capteur ne détecte plus de feuille cela signifie que le bac 117 est vide et que l'opération de numérisation est terminée. Ce temps prédéterminé est de l'ordre de la seconde Cela déclenche l'inversion du sens de rotation du moteur 111, ce qui a pour effet le soulèvement du support 103, et donc l'abaissement de l'ergot 118. Comme l'ergot 118 descend, le stoppeur 112, qui prend appui sur l'ergot 118, descend lui aussi jusqu'à ce que son extrémité 116 soit en contact avec le fond du bac 117, empêchant ainsi l'introduction brutale et ou importante, de papier dans le circuit d'entraînement du papier.The figure 8 shows that a scanner has a sensor 123 for detecting the presence of a sheet in the paper drive circuit. This detection is timed, which means that if, after a predetermined time, the sensor no longer detects a sheet, it means that the tray 117 is empty and the scanning operation is completed. This predetermined time is of the order of one second This triggers the reversal of the direction of rotation of the motor 111, which has the effect of lifting the support 103, and therefore the lowering of the lug 118. As the lug 118 descends, the stopper 112, which bears on the lug 118, also descends until its end 116 is in contact with the bottom of the tray 117, thus preventing the abrupt introduction or important, paper in the paper drive circuit.

Le dispositif chargeur est alors revenu à un état de repos tel que décrit pour la figure 1.The charger device then returned to a state of rest as described for the figure 1 .

Pour l'exemple des figures 1 à 8, l'axe 113 est situé en aval de l'axe 108 sur le cheminement du papier. Dans cette exemple l'ergot 118 est situé entre les axes 113 et 108 de manière à agir sur la partie du stoppeur située entre les axes 113 et 108. On obtient ainsi des mouvements du stoppeur 112 et du support 103 qui sont inversés. Quand le support 103 monte, le stoppeur 112 descend, et vice et versa.For the example of Figures 1 to 8 the axis 113 is located downstream of the axis 108 on the path of the paper. In this example, the lug 118 is located between the axes 113 and 108 so as to act on the part of the stopper located between the axes 113 and 108. Thus, movements of the stopper 112 and the support 103 are reversed. When the support 103 goes up, the stopper 112 goes down, and vice versa.

Les figures 9 et 10 illustrent une variante hors du cadre de l'invention dans laquelle un axe 901, équivalent à l'axe 113, est situé en amont de l'axe 108 sur le cheminement du papier. Sur les figures 9 et 10, des références identiques désignent des éléments identiques. La figure 9 montre un stoppeur 902, équivalent au stoppeur 112, fixé à l'axe 901. Le stoppeur 902 comporte une paroi 903, équivalente à la paroi 115, qui prolonge un bras 904 du stoppeur 902. Le bras 904 s'étend depuis l'axe 901 vers l'axe 108, la paroi 903 formant un angle d'environ 90° avec le bras 904. La paroi 903 repose sur le fond du bac 117, entre l'axe 108 et l'axe 102, lorsque le socle 103 est en position haute, c'est à dire lorsque le chargeur est au repos. Le stoppeur 902 comporte aussi un bras 905 qui s'étend dans une direction opposée au bras 904. Le bras 905 coopère alors avec un ergot 906 du support 103 pour le déplacement du stoppeur 902. La figure 9 montre un chargeur en position de repos, c'est à dire avec le support 103 en position haute. Lorsque le chargeur est dans cette position, le stoppeur 902 descend par gravité, et la paroi 903 vient au contact du fond du bac 117. Le stoppeur 906 est situé en amont de l'axe 901 sur le cheminement du papier.The Figures 9 and 10 illustrate a variant outside the scope of the invention in which an axis 901, equivalent to the axis 113, is located upstream of the axis 108 on the path of the paper. On the Figures 9 and 10 identical references designate identical elements. The figure 9 shows a stopper 902, equivalent to the stopper 112, fixed to the axis 901. The stopper 902 comprises a wall 903, equivalent to the wall 115, which extends an arm 904 of the stopper 902. The arm 904 extends from the axis 901 to the axis 108, the wall 903 forming an angle of about 90 ° with the arm 904. The wall 903 rests on the bottom of the tray 117, between the axis 108 and the axis 102, when the base 103 is in the high position, that is to say when the charger is at rest. The stopper 902 also comprises an arm 905 which extends in a direction opposite to the arm 904. The arm 905 then cooperates with a lug 906 of the support 103 for the displacement of the stopper 902. The figure 9 shows a charger in the rest position, that is with the support 103 in the high position. When the loader is in this position, the stopper 902 descends by gravity, and the wall 903 comes into contact with the bottom of the tray 117. The stopper 906 is located upstream of the axis 901 on the path of the paper.

La figure 10 montre le support 103 en position basse. Lors du passage du support 103 de la position haute à la position basse, l'ergot 906 appuie sur le dessus du bras 905, provoquant la rotation du stoppeur 902 autour de l'axe 901, et donc la monté du bras 904 et de la paroi 903 au fur et à mesure que le bras 905 descend sous la pression du support 103, pression appliquée via l'ergot 906.The figure 10 shows the support 103 in the down position. During the passage of the support 103 from the high position to the low position, the lug 906 rests on the top of the arm 905, causing the rotation of the stopper 902 about the axis 901, and thus the mounting of the arm 904 and the 903 wall as the arm 905 descends under the pressure of the support 103, pressure applied via the lug 906.

Avec un positionnement des éléments stoppeur et ergot différent, on obtient un résultat identique et recherché. Ce résultat est un moyen d'obturation de l'accès au circuit d'entraînement du papier, et en particulier au système de déliassage, en fonction de la position du support 103 d'un chargeur de document. Comme pour la première variante, l'ergot 906 est moulé en même temps que le support 103.With different positioning of the stopper and ergot elements, the result is identical and sought after. This result is a means of sealing the access to the paper drive circuit, and in particular to the system of displacement, depending on the position of the support 103 of a document feeder. As for the first variant, the lug 906 is molded at the same time as the support 103.

Dans la pratique il est possible qu'au cours du cycle d'entraînement du papier le stoppeur redescende jusqu'au niveau des feuilles qui sont stockées dans le bac 117. Un tel événement se produit par exemple en cas d'interruption de la procédure de numérisation, et donc de soulèvement du support 103. Un tel événement se produit aussi avec des scanners recto-verso qui ont parfois besoin d'inverser le sens de circulation du papier dans leur circuit d'entraînement. Cette inversion est obtenue en inversant le sens de rotation du moteur 111, ce qui a pour effet aussi de faire remonter le support 103, et donc redescendre le stoppeur 112. De manière a ce que ces contacts entre l'extrémité 116 du stoppeur 112 et le papier n'abîme pas le papier, l'extrémité 116 est adoucie, soit en arrondissant son profil, soit en utilisant un matériau non abrasif.In practice it is possible that during the paper drive cycle the stopper descends to the level of the sheets that are stored in the tray 117. Such an event occurs for example in case of interruption of the procedure of This type of event also occurs with double-sided scanners that sometimes need to reverse the direction of paper flow in their drive circuit. This inversion is obtained by reversing the direction of rotation of the motor 111, which also has the effect of raising the support 103, and thus lowering the stopper 112. So that these contacts between the end 116 of the stopper 112 and the paper does not damage the paper, the end 116 is softened, either by rounding its profile, or by using a non-abrasive material.

Avec l'invention il est donc possible de mettre en oeuvre un stoppeur dont le positionnement au cours du cycle d'entraînement du papier est directement assuré par le dispositif chargeur, sans qu'il faille avoir recours à des pièces intermédiaires entre le stoppeur 112 et le support 103. Il s'agit donc d'une mise en oeuvre simplifié à l'extrême car elle ne nécessite pas d'autre pièce que le stoppeur lui-même.With the invention it is therefore possible to implement a stopper whose positioning during the paper drive cycle is directly provided by the loader device, without having to resort to intermediate parts between the stopper 112 and the support 103. It is therefore an implementation simplified to the extreme because it does not require any other room than the stopper itself.

Claims (7)

  1. A document feeder including:
    - a stopper device (112),
    - a mobile support (103) around a first axle (108), which support includes a first mobile roller (107) rotating around first axle (108) and forming the inlet of a feeder deleaving system as well as a second mobile roller (101) rotating around a second axle (102) parallel to first axle (108),
    characterised in that
    the stopper device is mobile around a third axle (113) parallel to the first axle and situated downstream of the first axle on the course of the document, the stopper device being formed by a longitudinal arm (114) extending perpendicularly to the third axle, the end of said arm opposite the third axle including a wall (115) forming an angle of approximately 90° with said arm, the stopper device being mobile between at least two positions:
    - a down position in which an end of the stopper prevents the introduction of a document into the feeder deleaving system,
    - an up position in which the sheet fed by the rollers of the feeder penetrate into the feeder deleaving system.
    - the stopper device passing from the up position to the down position by being directly activated by a spigot (118) of the feeder support, said spigot being in direct contact with the arm.
  2. A document feeder according to claim 1, characterised in that when the support is in the up position, the stopper is in the down position.
  3. A document feeder according one of claims 1 or 2, characterised in that an end (116) of the stopper brought, during a paper feeding cycle, in contact with the paper or the bottom of a feeder tray, has a suitable shape so as not to damage the paper.
  4. A document feeder according one of claims 1 to 3, characterised in that the stopper device moves down by gravity, the support spigot countering the downwards movement of the stopper, the position of the stopper being determined by the position of the support.
  5. A document feeder according to claim 4, characterised in that the position of the support is determined by the direction of rotation of a motor (111).
  6. A document feeder according to one of claims 1 to 5, characterised in that the end of the stopper serving to block the documents, moves between the axles of the feed rollers.
  7. A document feeder according to one of claims 1 to 6, characterised in that the spigot is an outgrowth of the support, this outgrowth being moulded at the same time as said support.
EP20040300828 2003-12-15 2004-11-30 Stopper device for a sheet feeder Expired - Fee Related EP1544141B8 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0351053A FR2863601A1 (en) 2003-12-15 2003-12-15 Stopper for document loader, has end contacting with base of trough and wall constituting obstacle to insertion of sheet in trough, when stopper is in down position, where stopper is activated between up and down positions by spigot
FR0351053 2003-12-15

Publications (3)

Publication Number Publication Date
EP1544141A1 EP1544141A1 (en) 2005-06-22
EP1544141B1 true EP1544141B1 (en) 2009-08-19
EP1544141B8 EP1544141B8 (en) 2010-02-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040300828 Expired - Fee Related EP1544141B8 (en) 2003-12-15 2004-11-30 Stopper device for a sheet feeder

Country Status (4)

Country Link
EP (1) EP1544141B8 (en)
DE (1) DE602004022626D1 (en)
ES (1) ES2331916T3 (en)
FR (1) FR2863601A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100721647B1 (en) * 2006-05-17 2007-05-23 노틸러스효성 주식회사 Two-stage rock structure of atm
FR2938831B1 (en) 2008-11-21 2011-10-21 Sagem Comm SHEET PROCESSING APPARATUS COMPRISING A SUPPLY BIN AND A SHEET LOCKING FASTER PRESENTED IN THE BIN

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62111834A (en) * 1985-11-06 1987-05-22 Fuji Electric Co Ltd Bill delivery method
JPH0774052B2 (en) * 1986-04-15 1995-08-09 松下電送株式会社 Automatic paper feeder
JPH04298433A (en) * 1991-03-27 1992-10-22 Seikosha Co Ltd Paper sheet feeder
US5984298A (en) * 1996-11-15 1999-11-16 Mita Industrial Co., Ltd. Sheet feeding apparatus with a driving device for a paper stopper
JP2002096935A (en) * 2000-09-21 2002-04-02 Matsushita Graphic Communication Systems Inc Paper feeder
JP3742296B2 (en) * 2000-12-19 2006-02-01 ニスカ株式会社 Sheet feeder
JP3636077B2 (en) * 2001-01-23 2005-04-06 村田機械株式会社 Paper feeder
JP4688360B2 (en) * 2001-07-23 2011-05-25 パナソニックシステムネットワークス株式会社 Paper feeder
JP3652295B2 (en) * 2001-10-25 2005-05-25 キヤノン株式会社 Sheet feeding apparatus, image forming apparatus including the same, and image reading apparatus

Also Published As

Publication number Publication date
EP1544141A1 (en) 2005-06-22
FR2863601A1 (en) 2005-06-17
EP1544141B8 (en) 2010-02-03
DE602004022626D1 (en) 2009-10-01
ES2331916T3 (en) 2010-01-20

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