EP0703046A2 - Table paper-trimmer for cutting index tabs - Google Patents

Table paper-trimmer for cutting index tabs Download PDF

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Publication number
EP0703046A2
EP0703046A2 EP95410104A EP95410104A EP0703046A2 EP 0703046 A2 EP0703046 A2 EP 0703046A2 EP 95410104 A EP95410104 A EP 95410104A EP 95410104 A EP95410104 A EP 95410104A EP 0703046 A2 EP0703046 A2 EP 0703046A2
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EP
European Patent Office
Prior art keywords
knife
motor
plate
cutter
cutter according
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.)
Withdrawn
Application number
EP95410104A
Other languages
German (de)
French (fr)
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EP0703046A3 (en
Inventor
Louis Mathian
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0703046A2 publication Critical patent/EP0703046A2/en
Publication of EP0703046A3 publication Critical patent/EP0703046A3/xx
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/14—Crank and pin means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/26—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut
    • B26D1/30—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut with limited pivotal movement to effect cut
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/26—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut
    • B26D1/30—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut with limited pivotal movement to effect cut
    • B26D1/305—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut with limited pivotal movement to effect cut for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/14—Forming notches in marginal portion of work by cutting

Definitions

  • the invention relates to an office cutter having a chassis which can be placed on a table, said chassis comprising a fixed support plate for one or more sheets to be cut, a movable part mounted in translation relative to said plate, a knife whose one end is pivotally mounted on said movable part so as to struggle in a plane perpendicular to said plate by cooperating with a counter knife to cut the sheet placed on the plate and a translation mechanism for moving the part mobile, said knife and counter knife having curved ends for cutting a strip leaving a tab.
  • a cutter of the kind mentioned is the subject of European patent application No. 0 491 633, of the applicant, to which the reader requests will advantageously refer for the details of construction and operation of this cutter.
  • This known cutter includes an electric control for moving the movable part, but the knife is actuated manually using a handle disposed on the opposite side of the joint.
  • the effort to be provided is not negligible, in particular at the end of the cutting stroke and the aim of the present invention is to allow control by a motor, in particular electric, of the aforementioned cutter.
  • the guillotine according to the invention is characterized in that it comprises a rotary motor, in particular an electric motor and a crank system for connecting between the motor and the knife, arranged so that one of the neutral positions of the crank system substantially corresponds to the lowered cutting position of the knife.
  • the crank transmission allows the use of a low power motor, controlled by a simple push button.
  • the crank system is a crank associated with a connecting rod, a simple eccentric, a cam system or any other operating mechanism.
  • the raised position of the knife corresponds to the other dead center of the crank system. It is advantageous to use a motor with only one direction of rotation, the passage of the neutral points automatically ensuring the reversal of the direction of movement of the knife, but it is possible to provide for a reversal of the direction of rotation of the motor.
  • a limit switch stops the motor when the neutral point is raised and a new cycle is triggered by the push button with possibly locking and safety systems, preventing any false maneuver and a lowered knife stop.
  • the motor for example of the geared motor type, is carried by the movable part and on its axis is keyed a crank, connected by a connecting rod to the knife, preferably in the vicinity of the end opposite the articulation.
  • the cutter advantageously has a compression bar for the sheets to be cut, capable of occupying a raised position, for positioning the sheets on the plate and a lowered clamping position and, according to a development of the invention, the movement of the bar compression with respect to the plate is derived from that of the knife.
  • the compression bar is biased in the compression position by springs and it is moved in the raised position, against the springs, by a finger carried by the knife. This movement occurs at the end of the knife raising stroke, when the crank approaches the top dead center and is capable of providing the required lifting force. From the start of the knife lowering movement the compression bar moves under the action of the springs in the leaf clamping position.
  • a chassis 10 of generally parallelepipedal shape has on its upper face a plate 11 for supporting sheets, not shown. At one of the lateral edges of the chassis 10 is rigidly secured a slide 12 for supporting and guiding a movable part 13.
  • a knife 14 is articulated at 15 on the end of the movable part 13 for struggling in a plane perpendicular to the plate 11.
  • the movable part 13 carries a counter knife 16 and the frame 10 carries a bar 18 for compressing the sheets to be cut, which are positioned on the plate 11 at predetermined locations.
  • On the end of the blade of the knife 14 is elastically fixed a transverse blade 17, which cooperates with a curved part of the end of the counter knife 16.
  • the latter cuts a strip leaving a tab of greater or lesser length.
  • the position of the sheet, relative to the knife 14 is adjustable by displacement of the movable part 13, to cut tabs of different lengths and this displacement is controlled by a system of screws and nuts, driven by an electric motor (not shown) .
  • the relative positioning of the sheets can be achieved in a different way.
  • the mobile part 13 carries an electric motor 19, on the axis of which is keyed a crank 20, connected by a connecting rod 21 to the knife 14.
  • the connecting rod 21 is articulated to the knife 14 in the vicinity of its end opposite to the articulation 15.
  • the rotation of the motor 19 causes the connecting rod 21 and the crank 20 to tilt the knife 14 between the raised and lowered positions and the assembly is arranged so that in the lowered position of the knife 14, the connecting rod 21, crank 20 system is at bottom dead center and in the raised position at top dead center.
  • the motor 19 can be in one direction of rotation, the stop in the raised and / or lowered position of the knife being controlled by limit switch contacts (not shown).
  • the starting of the motor 19 is controlled by a push button or in any other way.
  • the compression bar 18 is mounted in translation perpendicular to the plate 11, being guided by two rods 22, fixed on the top of the plate 11.
  • the bar 18 is extended upwards by a plate 25, the upper edge 26 of which is curved and crossed by the rods 22, so as to effectively guide the sliding of the bar 18.
  • the amplitude of the up and down movement of the bar 18 is low and this movement is controlled by a finger 27, carried by the knife 14, which comes, at the end of the stroke for raising the knife 14, abut against the edge 26 and drive the bar 18 upwards against the springs 23.
  • the electric motor 19 of the gearmotor type can be of low power, since the crank system 20 generates, in the vicinity of the bottom dead center, the large force necessary for the movement of the knife 14 at the end of the lowering stroke and, in the vicinity of the top dead center, the large force required to raise the compression bar 18.
  • the cutter is automated by simple means, without any significant modification to the basic device.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetal Cutting Devices (AREA)

Abstract

The guillotine has a frame (10) suitable for setting on a table, a fixed supporting plate for the sheets to be cut, a moving section which is set across the plate, and a cutter (14) which has one end pivoted to the moving section so it can move vertically and interact with a counter-cutter. Both the cutter and counter-cutter have curved ends which allow a strip to be cut with its ends still joined. The cutter is operated by a rotary motor and a lever mechanism which moves it between its upper and lower positions, with the motor connected to the lever through a reduction gear mechanism and key joint. The guillotine also has a pressure bar to hold the paper sheets against the plate while they are being cut, equipped with guide rods (22) and springs (23) to return the bar to its original position.

Description

L'invention est relative à un massicot de bureau ayant un châssis pouvant être posé sur une table, ledit châssis comportant un plateau fixe de support d'une ou de plusieurs feuilles à massicoter, une partie mobile montée en translation par rapport audit plateau, un couteau dont l'une des extrémités est montée à pivotement sur ladite partie mobile de façon à se débattre dans un plan perpendiculaire audit plateau en coopérant avec un contre-couteau pour massicoter la feuille posée sur le plateau et un mécanisme de translation pour déplacer la partie mobile, lesdits couteau et contre-couteau ayant des extrémités recourbées pour une découpe d'une bande laissant subsister un onglet.The invention relates to an office cutter having a chassis which can be placed on a table, said chassis comprising a fixed support plate for one or more sheets to be cut, a movable part mounted in translation relative to said plate, a knife whose one end is pivotally mounted on said movable part so as to struggle in a plane perpendicular to said plate by cooperating with a counter knife to cut the sheet placed on the plate and a translation mechanism for moving the part mobile, said knife and counter knife having curved ends for cutting a strip leaving a tab.

Un massicot du genre mentionné fait l'objet de la demande de brevet européen N° 0 491 633, du demandeur, à laquelle demande le lecteur se référera avantageusement pour les détails de réalisation et de fonctionnement de ce massicot. Ce massicot connu comporte une commande électrique de déplacement de la partie mobile, mais le couteau est actionné manuellement à l'aide d'une poignée disposée du côté opposé de l'articulation. L'effort à fournir n'est pas négligeable, notamment en fin de course de découpe et le but de la présente invention est de permettre une commande par un moteur, notamment électrique du massicot précité.A cutter of the kind mentioned is the subject of European patent application No. 0 491 633, of the applicant, to which the reader requests will advantageously refer for the details of construction and operation of this cutter. This known cutter includes an electric control for moving the movable part, but the knife is actuated manually using a handle disposed on the opposite side of the joint. The effort to be provided is not negligible, in particular at the end of the cutting stroke and the aim of the present invention is to allow control by a motor, in particular electric, of the aforementioned cutter.

Le massicot selon l'invention est caractérisé en ce qu'il comporte un moteur rotatif, notamment électrique et un système de manivelle de liaison entre le moteur et le couteau, agencé de façon que l'une des positions de point mort du système de manivelle correspond substantiellement à la position abaissée de découpe du couteau.The guillotine according to the invention is characterized in that it comprises a rotary motor, in particular an electric motor and a crank system for connecting between the motor and the knife, arranged so that one of the neutral positions of the crank system substantially corresponds to the lowered cutting position of the knife.

La transmission par manivelle permet l'emploi d'un moteur de faible puissance, commandé par un simple bouton poussoir. Le système à manivelle est une manivelle associée à une bielle, un simple excentrique, un système à cames ou tout autre mécanisme opérant.The crank transmission allows the use of a low power motor, controlled by a simple push button. The crank system is a crank associated with a connecting rod, a simple eccentric, a cam system or any other operating mechanism.

Selon un développement de l'invention la position relevée du couteau correspond à l'autre point mort du système à manivelle. Il est avantageux d'utiliser un moteur à un seul sens de rotation, le passage des points morts assurant automatiquement l'inversion du sens de déplacement du couteau, mais il est possible de prévoir une inversion du sens de rotation du moteur. Un contact de fin de course arrête le moteur au passage du point mort relevé et un nouveau cycle est déclenché par le bouton poussoir avec éventuellement des systèmes de verrouillage et de sécurité, évitant toute fausse manoeuvre et un arrêt à couteau abaissé.According to a development of the invention, the raised position of the knife corresponds to the other dead center of the crank system. It is advantageous to use a motor with only one direction of rotation, the passage of the neutral points automatically ensuring the reversal of the direction of movement of the knife, but it is possible to provide for a reversal of the direction of rotation of the motor. A limit switch stops the motor when the neutral point is raised and a new cycle is triggered by the push button with possibly locking and safety systems, preventing any false maneuver and a lowered knife stop.

Le moteur, par exemple du type moto-réducteur, est porté par la partie mobile et sur son axe est clavetée une manivelle, reliée par une bielle au couteau, de préférence au voisinage de l'extrémité opposée à l'articulation. Une rotation d'un tour ou éventuellement d'un demi tour de la manivelle, à partir d'un point mort, correspond à un cycle du couteau, respectivement de relevé et/ou d'abaissement du couteau.The motor, for example of the geared motor type, is carried by the movable part and on its axis is keyed a crank, connected by a connecting rod to the knife, preferably in the vicinity of the end opposite the articulation. A rotation of one turn or possibly a half turn of the crank, from a neutral point, corresponds to a cycle of the knife, respectively of raising and / or lowering of the knife.

Le massicot présente avantageusement une barre de compression des feuilles à découper, susceptible d'occuper une position relevée, pour le positionnement des feuilles sur le plateau et une position abaissée de serrage et, selon un développement de l'invention, le mouvement de la barre de compression par rapport au plateau est dérivé de celui du couteau. La barre de compression est sollicitée en position de compression par des ressorts et elle est déplacée en position relevée, à l'encontre des ressorts, par une doigt porté par le couteau. Ce déplacement intervient en fin de course de relèvement du couteau, lorsque la manivelle s'approche du point mort haut et est capable de fournir la force de relèvement requise. Dès l'amorce du mouvement d'abaissement du couteau la barre de compression se déplace sous l'action des ressorts en position de serrage des feuilles.The cutter advantageously has a compression bar for the sheets to be cut, capable of occupying a raised position, for positioning the sheets on the plate and a lowered clamping position and, according to a development of the invention, the movement of the bar compression with respect to the plate is derived from that of the knife. The compression bar is biased in the compression position by springs and it is moved in the raised position, against the springs, by a finger carried by the knife. This movement occurs at the end of the knife raising stroke, when the crank approaches the top dead center and is capable of providing the required lifting force. From the start of the knife lowering movement the compression bar moves under the action of the springs in the leaf clamping position.

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre d'un mode de mise en oeuvre de l'invention donné à titre d'exemple non limitatif et représenté aux dessins annexés, dans lesquels:

  • la figure 1 est une vue en élévation d'un massicot selon l'invention, le couteau étant représenté à proximité de la position relevée;
  • la figure 2 est une vue en plan du massicot selon la figure 1.
Other advantages and characteristics will emerge more clearly from the description which follows of an embodiment of the invention given by way of nonlimiting example and represented in the appended drawings, in which:
  • Figure 1 is an elevational view of a cutter according to the invention, the knife being shown near the raised position;
  • FIG. 2 is a plan view of the cutter according to FIG. 1.

Sur les figures un châssis 10 de forme générale parallélépipèdique présente sur sa face supérieure un plateau 11 de support de feuilles, non représentées. A l'un des bords latéraux du châssis 10 est rigidement assujettie une glissière 12 de support et de guidage d'une partie mobile 13. Un couteau 14 est articulé en 15 sur l'extrémité de la partie mobile 13 pour se débattre dans un plan perpendiculaire au plateau 11. La partie mobile 13 porte un contre-couteau 16 et le châssis 10 porte une barre 18 de compression des feuilles à découper, lesquelles sont positionnées sur le plateau 11 en des emplacements prédéterminés. Sur l'extrémité de la lame du couteau 14 est fixée élastiquement une lame transversale 17, qui coopère avec une partie recourbée de l'extrémité du contre-couteau 16. Selon la position de la feuille par rapport au couteau 14, ce dernier découpe une bande laissant subsister un onglet de longueur plus ou moins grande. La position de la feuille, par rapport au couteau 14 est réglable par déplacement de la partie mobile 13, pour découper des onglets de différentes longueurs et ce déplacement est piloté par un système de vis et écrou, entraîné par un moteur électrique ( non représenté). Le positionnement relatif des feuilles peut être réalisé d'une manière différente.In the figures, a chassis 10 of generally parallelepipedal shape has on its upper face a plate 11 for supporting sheets, not shown. At one of the lateral edges of the chassis 10 is rigidly secured a slide 12 for supporting and guiding a movable part 13. A knife 14 is articulated at 15 on the end of the movable part 13 for struggling in a plane perpendicular to the plate 11. The movable part 13 carries a counter knife 16 and the frame 10 carries a bar 18 for compressing the sheets to be cut, which are positioned on the plate 11 at predetermined locations. On the end of the blade of the knife 14 is elastically fixed a transverse blade 17, which cooperates with a curved part of the end of the counter knife 16. Depending on the position of the sheet relative to the knife 14, the latter cuts a strip leaving a tab of greater or lesser length. The position of the sheet, relative to the knife 14 is adjustable by displacement of the movable part 13, to cut tabs of different lengths and this displacement is controlled by a system of screws and nuts, driven by an electric motor (not shown) . The relative positioning of the sheets can be achieved in a different way.

.Un massicot de ce genre est décrit en détail dans la demande de brevet précitée, à laquelle on se reportera avantageusement.A cutter of this kind is described in detail in the aforementioned patent application, to which reference will be made advantageously.

La partie mobile 13 porte un moteur électrique 19, sur l'axe duquel est clavetée une manivelle 20, reliée par une bielle 21 au couteau 14. La bielle 21 est articulée au couteau 14 au voisinage de son extrémité opposée à l'articulation 15. La rotation du moteur 19 provoque par la bielle 21 et la manivelle 20 un basculement du couteau 14 entre les positions relevées et abaissées et l'ensemble est agencé de manière qu'en position abaissée du couteau 14, le système bielle 21, manivelle 20 est au point mort bas et en position relevée au point mort haut. Le moteur 19 peut être à un seul sens de rotation, l'arrêt en position relevée et/ou abaissée du couteau étant commandé par des contacts de fin de course (non représentés). La mise en route du moteur 19 est commandée par un bouton poussoir ou de toute autre manière.The mobile part 13 carries an electric motor 19, on the axis of which is keyed a crank 20, connected by a connecting rod 21 to the knife 14. The connecting rod 21 is articulated to the knife 14 in the vicinity of its end opposite to the articulation 15. The rotation of the motor 19 causes the connecting rod 21 and the crank 20 to tilt the knife 14 between the raised and lowered positions and the assembly is arranged so that in the lowered position of the knife 14, the connecting rod 21, crank 20 system is at bottom dead center and in the raised position at top dead center. The motor 19 can be in one direction of rotation, the stop in the raised and / or lowered position of the knife being controlled by limit switch contacts (not shown). The starting of the motor 19 is controlled by a push button or in any other way.

La barre de compression 18 est montée en translation perpendiculairement au plateau 11, en étant guidée par deux tiges 22, fixées sur le dessus du plateau 11. Des ressorts 23 de compression, enfilés sur les tiges 22 et intercalés entre la barre 18 et des butées 24 portées par les tiges 22, sollicitent la barre 18 en position de serrage des feuilles sur le plateau 11. La barre 18 est prolongée vers le haut par une plaque 25, dont le bord supérieur 26 est recourbé et traversé par les tiges 22, de façon à guider efficacement le coulissement de la barre 18. L'amplitude du mouvement de montée et de descente de la barre 18 est faible et ce mouvement est commandé par un doigt 27, porté par le couteau 14, qui vient, en fin de course de relèvement du couteau 14, buter contre le bord 26 et entraîner la barre 18 vers le haut à l'encontre des ressorts 23. Dans cette position relevée du couteau 14 et de la barre de compression 18, qui correspond à une position d'arrêt du moteur 19 au point mort haut, les feuilles à découper peuvent être placées sur le plateau 11. Dès le début du mouvement d'abaissement du couteau 14, commandé par la mise en route du moteur 19, la descente du doigt 27 autorise le rappel vers le bas par les ressorts 23 de la barre 18, qui vient comprimer les feuilles insérées entre la barre 18 et le plateau 11.The compression bar 18 is mounted in translation perpendicular to the plate 11, being guided by two rods 22, fixed on the top of the plate 11. Compression springs 23, threaded on the rods 22 and interposed between the bar 18 and stops 24 carried by the rods 22, urge the bar 18 in the position for clamping the sheets on the plate 11. The bar 18 is extended upwards by a plate 25, the upper edge 26 of which is curved and crossed by the rods 22, so as to effectively guide the sliding of the bar 18. The amplitude of the up and down movement of the bar 18 is low and this movement is controlled by a finger 27, carried by the knife 14, which comes, at the end of the stroke for raising the knife 14, abut against the edge 26 and drive the bar 18 upwards against the springs 23. In this raised position of the knife 14 and the compression bar 18, which corresponds to a stop position of the mote ur 19 at top dead center, the sheets to be cut can be placed on the tray 11. As soon as the lowering movement of the knife 14, commanded by the starting of the motor 19, begins, the descent of the finger 27 authorizes the return to the bottom by the springs 23 of the bar 18, which compresses the sheets inserted between the bar 18 and the plate 11.

Il est facile de voir que la tâche de l'opérateur est limitée à la mise en place des feuilles et à la commande des moteurs. Le moteur électrique 19 du type motoréducteur peut être de faible puissance, puisque le système de manivelle 20 engendre, au voisinage du point mort bas, la force importante, nécessaire au déplacement du couteau 14 en fin de course d'abaissement et, au voisinage du point mort haut, la force importante nécessaire au relèvement de la barre de compression 18. L'automatisation du massicot est réalisée par des moyens simples, sans modification notable de l'appareil de base.It is easy to see that the operator's task is limited to placing the sheets and controlling the motors. The electric motor 19 of the gearmotor type can be of low power, since the crank system 20 generates, in the vicinity of the bottom dead center, the large force necessary for the movement of the knife 14 at the end of the lowering stroke and, in the vicinity of the top dead center, the large force required to raise the compression bar 18. The cutter is automated by simple means, without any significant modification to the basic device.

L'invention est bien entendu nullement limitée au mode de mise en oeuvre plus particulièrement décrit en référence aux dessins et elle s'étend à toute variante restant dans le cadre des équivalences, notamment à celle où l'entraînement du système bielle manivelle serait réalisé d'une autre manière.The invention is of course in no way limited to the mode of implementation more particularly described with reference to the drawings and it extends to any variant remaining within the framework of equivalences, in particular to that where the drive of the crank connecting rod system would be carried out 'another way.

Claims (8)

Massicot de bureau ayant un châssis (10) pouvant être posé sur une table, ledit châssis comportant un plateau fixe (11) de support d'une ou de plusieurs feuilles à massicoter, une partie mobile (13) montée en translation par rapport audit plateau (11), un couteau (14) dont l'une des extrémités est montée à pivotement sur ladite partie mobile (13) de façon à se débattre dans un plan perpendiculaire audit plateau en coopérant avec un contre-couteau (16) pour massicoter la feuille posée sur le plateau et un mécanisme de translation pour déplacer la partie mobile, lesdits couteau (14) et contre-couteau (16) ayant des extrémités recourbées pour une découpe d'une bande laissant subsister un onglet, caractérisé en ce qu'il comporte un moteur rotatif (19), notamment électrique et un système de manivelle (20) de liaison entre le moteur (19) et le couteau (14), agencé de façon que l'une des positions de point mort du système de manivelle (20) correspond substantiellement à la position abaissée de découpe du couteau (14).Office paper cutter having a frame (10) which can be placed on a table, said frame comprising a fixed plate (11) for supporting one or more sheets to be cut, a movable part (13) mounted in translation relative to said plate (11), a knife (14), one end of which is pivotally mounted on said movable part (13) so as to struggle in a plane perpendicular to said plate by cooperating with a counter knife (16) to cut the sheet placed on the plate and a translation mechanism for moving the movable part, said knife (14) and counter knife (16) having curved ends for cutting a strip leaving a tab, characterized in that it comprises a rotary motor (19), in particular an electric motor and a crank system (20) for connection between the motor (19) and the knife (14), arranged so that one of the neutral positions of the crank system ( 20) substantially matches ent in the lowered cutting position of the knife (14). Massicot selon la revendication 1, caractérisé en ce que l'autre position de point mort du système de manivelle (20) correspond substantiellement à la position relevée du couteau (14).Trimmer according to claim 1, characterized in that the other neutral position of the crank system (20) corresponds substantially to the raised position of the knife (14). Massicot selon la revendication 1 ou 2, caractérisé en ce que le moteur (19) est à un seul sens de rotation, l'inversion du sens de déplacement du couteau (14) étant assurée par le passage des points morts du système de manivelle (20).Cutter according to claim 1 or 2, characterized in that the motor (19) is in one direction of rotation, the reversal of the direction of movement of the knife (14) being ensured by the passage of the dead points of the crank system ( 20). Massicot selon la revendication 1, 2 ou 3, caractérisé en ce que le moteur (19) est un moto-réducteur électrique sur l'axe duquel est clavetée la manivelle (20), reliée par une bielle (21) au couteau (14).Cutter according to claim 1, 2 or 3, characterized in that the motor (19) is an electric gear motor on the axis of which is cranked the crank (20), connected by a connecting rod (21) to the knife (14) . Massicot selon la revendication 4, caractérisé en ce que la bielle (21) est articulée au couteau (14) au voisinage de l'extrémité opposée à l'articulation (15) du couteau (14) sur la partie mobile (13).Cutter according to claim 4, characterized in that the connecting rod (21) is articulated with the knife (14) in the vicinity of the end opposite to the articulation (15) of the knife (14) on the movable part (13). Massicot selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte une barre (18) de compression des feuilles, susceptible d'occuper une position abaissée de serrage des feuilles sur le plateau (11) et une position relevée et que le mouvement de la barre (18) de compression est dérivé de celui du couteau (14).Paper cutter according to any one of the preceding claims, characterized in that it comprises a sheet compression bar (18) capable of occupying a lowered position for clamping the sheets on the plate (11) and a raised position and that the movement of the compression bar (18) is derived from that of the knife (14). Massicot selon la revendication 6, caractérisé en ce que la barre (18) de compression est sollicitée en position de serrage par des ressorts (23) et est déplacée en position relevée en fin de course de relèvement du couteau (14).Cutter according to claim 6, characterized in that the compression bar (18) is biased in the clamping position by springs (23) and is moved to the raised position at the end of the knife raising stroke (14). Massicot selon l'une quelconque des revendications précédentes, caractérisé en ce que le couteau (14) est constitué de deux lames, une lame longitudinale et une lame transversale (17), cette dernière étant sollicitée élastiquement en direction d'une partie recourbée du contre-couteau (16).Paper cutter according to any one of the preceding claims, characterized in that the knife (14) consists of two blades, a longitudinal blade and a transverse blade (17), the latter being elastically biased towards a curved part of the counter - knife (16).
EP95410104A 1994-09-13 1995-09-11 Table paper-trimmer for cutting index tabs Withdrawn EP0703046A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9411145 1994-09-13
FR9411145A FR2724339B1 (en) 1994-09-13 1994-09-13 ELECTRICALLY CONTROLLED MITER CUTTER

Publications (2)

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EP0703046A2 true EP0703046A2 (en) 1996-03-27
EP0703046A3 EP0703046A3 (en) 1996-04-17

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EP95410104A Withdrawn EP0703046A2 (en) 1994-09-13 1995-09-11 Table paper-trimmer for cutting index tabs

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EP (1) EP0703046A2 (en)
FR (1) FR2724339B1 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
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FR2835473A1 (en) * 2002-02-06 2003-08-08 3C Classement Automatic cutter e.g. for tabs on file separator has cutting tool and movable stop set with an adjustable distance between them
CN106493771A (en) * 2016-12-26 2017-03-15 郑州游爱网络技术有限公司 One kind carries material-receiving device Platycodon grandiflorum cutter sweep
CN107553555A (en) * 2017-10-16 2018-01-09 江门市舒雅生物科技有限公司 beautiful millettia root slicing device
CN108055931A (en) * 2017-12-14 2018-05-22 防城港市防城区那梭香料厂 A kind of cutter device for lemongrass production
CN108098868A (en) * 2017-12-11 2018-06-01 柏伟伟 A kind of paper cutter in teaching
CN108245070A (en) * 2018-03-21 2018-07-06 北京智立行走科技有限公司 A kind of device of high stability automatic shearing toilet paper
CN108789662A (en) * 2018-07-28 2018-11-13 泾县瑞旺农业科技服务有限公司 A kind of log processing hilted broadsword automatic reverse both ends cutting device
CN109773881A (en) * 2019-01-26 2019-05-21 杜宗英 Ratchet mechanism formula index(ing) feed cuts out circle equipment with Pei automation is cut
CN110815314A (en) * 2019-10-28 2020-02-21 淮安信息职业技术学院 Numerical control automatic cutting device is taken to material
CN112238487A (en) * 2020-09-22 2021-01-19 卢启锦 Medicinal material cutting device
CN112248065A (en) * 2020-09-14 2021-01-22 钟定军 Garlic seedling cutting device

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CN106737960A (en) * 2016-12-19 2017-05-31 新昌县雪溪峰油茶专业合作社 A kind of high efficiency tea seed chopper and slicer
CN110725075A (en) * 2019-11-21 2020-01-24 杭州临安凯瑞服饰有限公司 Can automatic tangent line draw waist machine

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EP0491633A1 (en) 1990-12-19 1992-06-24 Louis Mathian Table paper-trimmer for cutting index tabs

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US2591472A (en) * 1947-02-01 1952-04-01 Wilson Jones Co Paper trimmer
US5123889A (en) * 1990-10-05 1992-06-23 Ranpak Corporation Downsized cushioning dunnage conversion machine and cutting assemblies for use on such a machine

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EP0491633A1 (en) 1990-12-19 1992-06-24 Louis Mathian Table paper-trimmer for cutting index tabs

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2835473A1 (en) * 2002-02-06 2003-08-08 3C Classement Automatic cutter e.g. for tabs on file separator has cutting tool and movable stop set with an adjustable distance between them
CN106493771A (en) * 2016-12-26 2017-03-15 郑州游爱网络技术有限公司 One kind carries material-receiving device Platycodon grandiflorum cutter sweep
CN107553555A (en) * 2017-10-16 2018-01-09 江门市舒雅生物科技有限公司 beautiful millettia root slicing device
CN108098868A (en) * 2017-12-11 2018-06-01 柏伟伟 A kind of paper cutter in teaching
CN108098868B (en) * 2017-12-11 2019-11-08 黄兴希 A kind of paper cutter in imparting knowledge to students
CN108055931A (en) * 2017-12-14 2018-05-22 防城港市防城区那梭香料厂 A kind of cutter device for lemongrass production
CN108245070A (en) * 2018-03-21 2018-07-06 北京智立行走科技有限公司 A kind of device of high stability automatic shearing toilet paper
CN108789662A (en) * 2018-07-28 2018-11-13 泾县瑞旺农业科技服务有限公司 A kind of log processing hilted broadsword automatic reverse both ends cutting device
CN109773881A (en) * 2019-01-26 2019-05-21 杜宗英 Ratchet mechanism formula index(ing) feed cuts out circle equipment with Pei automation is cut
CN110815314A (en) * 2019-10-28 2020-02-21 淮安信息职业技术学院 Numerical control automatic cutting device is taken to material
CN112248065A (en) * 2020-09-14 2021-01-22 钟定军 Garlic seedling cutting device
CN112238487A (en) * 2020-09-22 2021-01-19 卢启锦 Medicinal material cutting device

Also Published As

Publication number Publication date
FR2724339B1 (en) 1997-04-11
EP0703046A3 (en) 1996-04-17
FR2724339A1 (en) 1996-03-15

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