EP0669274A1 - Device for laterally aligning flat articles on a table - Google Patents

Device for laterally aligning flat articles on a table Download PDF

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Publication number
EP0669274A1
EP0669274A1 EP95102206A EP95102206A EP0669274A1 EP 0669274 A1 EP0669274 A1 EP 0669274A1 EP 95102206 A EP95102206 A EP 95102206A EP 95102206 A EP95102206 A EP 95102206A EP 0669274 A1 EP0669274 A1 EP 0669274A1
Authority
EP
European Patent Office
Prior art keywords
bar
axis
flat element
pull tab
arm
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.)
Granted
Application number
EP95102206A
Other languages
German (de)
French (fr)
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EP0669274B1 (en
Inventor
Fabio Bettinelli
Jean-Claude Rebeaud
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.)
Bobst Mex SA
Original Assignee
Bobst SA
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Publication date
Application filed by Bobst SA filed Critical Bobst SA
Publication of EP0669274A1 publication Critical patent/EP0669274A1/en
Application granted granted Critical
Publication of EP0669274B1 publication Critical patent/EP0669274B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/10—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/10—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position
    • B65H9/103—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B65H2701/1768—Book covers and the like

Definitions

  • the present invention relates to a device for lateral jogging of flat elements in a margin table of a cutting machine or of a plate press.
  • the flat element is advanced against one or more front cleats by first means, such as a strip or roller track, then is brought by second means, object of the invention, against one or more several lateral positioning tabs before the front edge of this element is gripped by a series of pliers mounted on a drive bar.
  • Such a device is used for the precise lateral positioning of flat elements having already received one or more impressions, the subsequent operation being either an additional impression in a platen press, or an operation of cutting and rejecting waste into such a press, this subsequent operation to be carried out in strict accordance with the previous impressions.
  • Side jogging devices used to date first comprise a lower roller driven in rotation, arranged transversely to the direction of movement of a sheet, and this close to a lateral cleat located on the left side of the table, such as also seen in the direction of movement of the sheet, side usually called "driver side".
  • These devices then include an upper roller mounted, vertical to the roller, at the end of an arm which, at rest, is in the high position. This arm is regularly lowered on each arrival of a flat element against the front tabs, so that the upper roller pinches this flat element against the lower motorized wheel which generates, by pulling on this element, a correction movement until side cleat.
  • An additional device located at the entrance to the jogging device checks the uniqueness of the sheet taken into account.
  • This device is formed by two lower and upper rollers situated in the same vertical plane oriented in the direction of movement of the element, and the spacing of which is adjusted to correspond only to the thickness of a single element.
  • the correct jogging of the flat element is verified by the displacement of a spring blade located in front of the cleat, which displacement is noted by the arrival near a magnetic detector of a metal flag secured to the blade.
  • opposite side conductor another device arranged on the right side of the table, called “opposite side conductor", and which comprises a member pushing transversely on the lateral edge of the flat element.
  • this device only works correctly if the element is rigid enough to withstand over its entire width such a rapid push.
  • the installation, special adjustment and subsequent disassembly of this expensive additional device involves long production dead times between each series.
  • the object of the present invention is a lateral jogging device which, as before, is fast, efficient and reliable, but which, moreover, presents much less risk of altering the gripping surfaces of the flat element.
  • Another object of the present invention is a device which can be transformed into a pulling or pushing device with the same components, and this in an action position adjustable at will throughout the width of the flat element.
  • a device comprising lower means for bringing the flat element against one or more lateral cleats and upper means for applying the flat element against the lower means, these upper means being mounted, au- above the lower means, on a bar lowering when the flat element is in abutment against one or more front tabs, owing to the fact that the lower means comprise a pull rod moved, when the bar is lowered, towards the lateral cleat , and the fact that the upper means mounted on the bar comprise a shoe movable in translation along an axis parallel to the pull tab so as to follow the movement of the flat element and the pull tab when pressed by the bar against the flat element, an elastic means bringing the shoe back to its initial position when the bar is raised.
  • the pulling force if applied on the left side, or the pushing force if applied on the right side, on the flat element is no longer done in a single line as in known devices, but in a contact surface defined by the intersection of the lower surface of the skate and the upper surface in correspondence of the zipper.
  • the pad has a rectangular bottom surface of the order of 2 cm by 3 cm, the zipper also having a thickness of the order of 2 cm.
  • the underside of the pad is made of synthetic material based on rubber having a high coefficient of friction.
  • the shoe is threaded on an axis carried by the end of a substantially horizontal balance pivoting around its other end in a vertical plane, the downward travel of which is limited by an acting retaining hook on the pendulum or on the axis, and the upward movement of which takes place against a return means acting vertically between an upper stop and either the balance or the axis.
  • the balance can be in the form of a substantially horizontal fork, the support axis of the shoe passing through the end of each of the two branches.
  • the return means it is possible to modulate the bearing force of the pad on the flat element.
  • the vertical position of the upper stop of the return element can be adjustable, in particular this stop being secured to the end of a vertical adjustment wheel, the external thread of which is engaged in a threaded orifice of an integral piece. from the bar. Thanks to this particularly easy-access wheel, this adjustment of the pressing force becomes easy.
  • the retaining hook is secured to the lower end of a rod, the threaded upper end of which is engaged in an adjustment nut resting on a part secured to the bar.
  • this nut By turning this nut, it is therefore also possible to adjust the initial position of the pendulum, and therefore of the shoe with respect to the bar.
  • This adjustment of the initial position can be taken advantage of in addition when adjusting the support force of the skate.
  • This adjustment can also make it possible, by coordinating the lowering of the bar and the advance of the flat element, to obtain a device for checking the uniqueness of the flat element taken into account.
  • a latch can be inserted at will between the adjusting nut and the integral part of the bar making it possible to maintain the balance and the shoe in a high position in which the shoe always remains above the flat element when the bar is lowered. There is thus a convenient and easily achievable means for rendering the jogging device inoperative when momentarily desired.
  • the elastic means bringing the shoe back to its initial position when the bar is raised consists of a spring threaded on a second axis carried by the end of the pendulum, and this close and parallel to the first support axis of the shoe, this spring acting between the balance and a ring secured to the shoe, passing through this second axis.
  • This arrangement makes it possible to substantially reduce the size of the upper means for applying the flat element in order to incorporate them into a compact block fixed to the bar.
  • the upper means for applying the flat element are contained in a block, the structure of which has a symmetry with respect to the vertical median plane parallel to the axis of movement of the flat elements, this block being threaded onto the bar where it is clamped in position by a clamping member such as a threaded axis passing through the block through a threaded orifice, the outer end being provided with a handle, the inner end pressing against the bar.
  • a clamping member such as a threaded axis passing through the block through a threaded orifice
  • the zipper and the bar extend over the entire width of the table, the zipper being installed in a groove formed along the upper surface of a crosspiece of the table, each side of the bar being held by the upper end of an oblique arm whose lower end is fixed, movable in rotation, alongside the table frame, if desired through an intermediate support plate.
  • This arrangement makes it possible to position the block containing the upper application means at any point on the front edge of the flat element to take account of its geometry and / or the characteristics of the impressions appearing therein.
  • a position of the block close to the left edge of the table rather generates a traction, while a position of this same block close to the right edge of the table rather induces a push on the flat element.
  • the same lower and upper means, each implemented by their unique control and actuation means make it possible to carry out both a traction and a pushing operation.
  • This arrangement allows a substantial saving of the fact that one can get rid of the duplication of previous devices.
  • a coordinated pull and push can be performed simultaneously if necessary.
  • the device for controlling and actuating the bar lowering the bar when the flat element is in abutment against a front stop may include a vertical rotating reading roller mounted on one side or the other, either on the lateral arm of the bar or on an extension of the arm beyond its point of rotation, this roller resting on a vertical cam parallel to the arm and enti- born from the means for advancing the flat element on the table, return means acting upwards either on an extension of the arm beyond its point of rotation, or on the lateral arm.
  • the arms of the bar are fixed to the sides of the table frame or to intermediate support plates which are both mobile in rotation and in translation parallel to the bar, adjustment means comprising a screw engaged in the frame or the 'one of the plates to adjust the lateral position of the bar relative to the table.
  • adjustment means comprising a screw engaged in the frame or the 'one of the plates to adjust the lateral position of the bar relative to the table.
  • the device for controlling and actuating the zipper moving the latter towards the lateral stop when the bar is lowered comprises a rotary reading roller mounted at one end of the zipper, if desired at the through an extended attachment stud of a rod, the pull tab, or the stud or rod, being pushed by a return means to hold the roller against a cam whose action takes place in the axis of the zipper.
  • the lateral jogging device can be included in an autonomous intermediate frame comprising two lateral support plates 10 and 12 connected together by a cross member 14, this frame being able to be installed or dismantled at will outside the downstream part of a margin station in a flat element processing machine.
  • This device comprises, in its lower part, a pull tab 20 installed in transverse sliding inside a groove 16 formed in the upper surface of the cross member 14.
  • a plurality of guides 21 is fixed to the pull tab 20, for example by screws, these guides being movable inside longitudinal openings 18 formed in the cross member on either side of the groove 16. These guides 21 prevent any untimely movement of the pull tab 20 in the vertical direction which could make it come out of the groove.
  • the end “on the side opposite the conductor” of the pull tab 20, that is to say on the left side in FIG. 1 and on the right side in FIG. 2, is connected by an attachment stud 22 to a rod. extension 24 passing through the support plate 12 through a bearing 25 integral with this plate.
  • this stud 22 is completed with a stop 23 against which a thrust spring 32 acts, the other end of which rests on a lateral protuberance of the cross member 14.
  • this spring 32 pushes , at rest, the pull tab 20, the stud 22 and the rod 24 outwards on the side opposite the conductor.
  • the end of the rod 24 is formed in a fork in order to hold a reading roller 26 bearing against a transverse cam whose thickness is variable so that its action takes place in the longitudinal direction of the pull tab 20.
  • this read roller 26 is held in its movement by a guide 27 evolving inside a guide fork 28 secured to the support plate 12, for example by being fixed to the bearing 25.
  • the cam 30 would also could be in the form of an oval disc parallel to the guide 28. In the illustrated embodiment, this cam 30 prints two round trips to the pull tab 20 at each turn.
  • This device comprises, in its upper part, firstly a bar 40 held at its end “side opposite to the conductor” by the upper end of an arm 41 and at its end “driver side” by the upper end of a second similar arm 42.
  • the lower end of the arm 41 is engaged by an inverted U-shaped notch in a drive axis 44 having, in correspondence, two opposite dishes. This engagement mode ensures the transmission of a torque to the bar 41 while allowing it to move transversely over a certain range.
  • a drive arm 45 is mounted parallel to the arm 41, these two arms being connected by the axis of rotation of a reading roller 46.
  • This reading roller 46 presses on a cam 48 slightly oval of lifting the bar.
  • This cam 48 is therefore arranged vertically and parallel to the arms 41 and 45.
  • This cam 48 is driven simultaneously with the cam 30 of the pull tab 20 by a power take-off 35 for general drive of the station of the machine, this drive therefore also being coordinated with the means for advancing the non-illustrated flat elements.
  • the arms 41 and 45 have, beyond their lower point of rotation, an extension 47 receiving the thrust directed upwards from a vertical lower spring not shown, the lower end of which rests on a stop integral with the plate 12.
  • the action of the spring, not shown tends to tilt the arms 41, 42 anticlockwise, as illustrated in FIGS. 1 and 2, while the action of the cam 48 on the read roller 46 tends to raise the bar 40 at regular intervals in a rotation of the arms 41, 42 carried out in a clockwise direction.
  • the lower end of the arm 42 is mounted in a bearing 43 whose outer ring can be advanced or moved back inside the housing by action on an adjustment screw 49.
  • this bearing therefore by transverse displacement of the arm 42, the lateral position of the bar 40 can be adjusted in a very fine manner, the U-shaped notch of the lower end of the arm 41 being displaced as much relative to the drive axis 44 .
  • this bar 40 can be installed a pulling block 50 on the driver side and / or a pusher block 52 on the side opposite to the driver.
  • the only difference between the blocks 50 and 52 is the installation, on the side of the block 50, of the jogging stop 70 of the flat elements.
  • This jogging stop is completed on one side by a spring blade 72 which, when pressed by a flat element, brings a flag closer to a magnetic proximity detector 74.
  • FIGS. 3 and 2 illustrating, in space, the arrangement of a few constituent elements.
  • the housing of the block 50 consists of two shells: an upstream 60 and a downstream 62.
  • the hull 60 carries, at its upstream lower edge, a pin 65 on which is mounted, in rotation in a vertical plane, a pendulum 64 having in the form of a fork oriented on the downstream side. Between the two branches of the fork making up the balance 64 are mounted two parallel axes 86 and 88.
  • a shoe 80 is threaded over the first external axis 86, and this mobile in translation facilitated by a track of balls 84.
  • This shoe 80 has a lateral extension in the form of a ring 82 threaded around the second internal axis 88, this ring constituting a stop for a spring 89 also threaded over this axis 88 and also bearing against the arm of the pendulum 64. Any movement of the shoe 80 towards the driver side, and this along the axis 86, is carried out therefore against the effect of the compression of the spring 89.
  • a stirrup 90 pressed downwards by a spring 92, presses on the end of each of the branches making up the fork of the pendulum 64.
  • the upper end of this spring 92 rests against a stop 94 integral with the lower end of an adjustment wheel 96 whose external thread is engaged with the thread of an orifice formed in the upper wall of the shell 62.
  • an extension of the axis 86 is taken in a hook 102 integral with the lower end of a retaining rod 100, the threaded upper end 104 of which is engaged in an adjustment nut 106.
  • the lower face of this nut 106 normally rests against the upper face of the shell 62.
  • the adjusting nut 106 is temporarily raised to install a latch 110 over the upper face of the shell 62, the position of the retaining hook 102 then being deliberately higher than necessary.
  • the upstream shell 60 has, above the balance 64, a transverse passage allowing the block 50 to be installed around the bar 40, a threaded rod 111 turned by means of a handle 112 making it possible to block the position by tightening.
  • a deflector plate 114 protects the pendulum 64 against the front edge of flat elements normally provided to pass below.
  • the shell 62 is rigorously symmetrical with respect to its median plane, in this case the cutting plane B-B. In this way, it is possible at any time to reverse on the other side the position of the retaining rod 100, of the stop 70 with its sensors 72 and 74, and, after having turned the pendulum 64, reinstall the spring 89 of the 'other side of the ring 82 so that the movement of the shoe 80 is from right to left and no longer in the opposite direction as initially.
  • the device described above operates in the following manner.
  • One of the pulling blocks 50 or pushers 52 is, if desired, put out of service by inserting the latch 110 under the adjusting nut 106.
  • the lateral position the active block is then roughly adjusted by separating the block from the bar 40 and this by action on the handle 112.
  • the block can then be moved in particular along a graduated strip 39, then this block is again tightened against the bar 40.
  • the exact desired position of the shoe 80 is then obtained by acting on the adjustment screw 49 which finely moves the assembly of the bar 40 and the block concerned.
  • connection of the PTO 35 is made so that the cam 48 does not lower the bar 40 until the flat element has already been brought into abutment against front tabs not shown.
  • the lowering of the bar 40, therefore of the block 50 causes the shoe 80 to be applied in its lower face 81 against the flat element and press it against the pull tab 20 with a force dependent on the adjustment of the stop 94 of the vertical spring 92.
  • This flat element is thus clamped no longer in a line, but according to the intersection surface of the lower face 81 of the shoe 80 and the upper surface in correspondence of the pull tab 20.
  • This surface is of the order of two centimeters wide by three centimeters long, which regularly distributes the application force in a pressure that is not likely to alter the lower and upper contact surfaces of this flat element.
  • the pull tab 20 ends its race by sliding somewhat with respect to the flat element, the smooth upper surface of this pull tab not damaging the contact surface.
  • the flag of the spring leaf 72 approaches the proximity detector 74 which confirms the successful completion of the operation.
  • the flat element being jogged, its front edge can then be grasped by the clamps mounted along a drive bar not shown.
  • the cam 48 then prints a new lifting movement at the bar 40, therefore at the block 50.
  • the block 50 is dismantled in order to laterally reverse the internal elements, in particular the stop and the direction of movement of the pad.
  • the cam 30 is offset by 90 ° or 180 ° so that the zipper moves in the other direction when the bar 40 is lowered.
  • the device according to the invention makes it possible, with the same material, to make a jogging towards a first side either by traction or by pushing, and these same operations in the direction reverse.
  • the cam 48 can be shaped so that the bar lowers very quickly to a first position in which the lower edge of the pad 80 previously adjusted remains momentarily at a height just sufficient to allow a single flat element to pass before pressing it. against the zipper.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Liquid Crystal (AREA)
  • Chain Conveyers (AREA)
  • Automatic Assembly (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Basic Packing Technique (AREA)
  • Pile Receivers (AREA)
  • Laser Beam Processing (AREA)
  • Specific Conveyance Elements (AREA)
  • Transmission Devices (AREA)
  • Details Of Cutting Devices (AREA)

Abstract

The clamp consists of two lateral supporting plates (10,12) connected by a cross-member (14). A lower rod (20) can slide transversely in a groove (16) in the cross-member, and is equipped with guides (21) movable in elongated apertures (18). One end of the rod is equipped with an extension (24) which passes through the lateral supporting plate (12) and a bearing (25) fixed to the plate. The end of the extension is in the shape of a fork (28) which holds a roller (26) following the surface of a cam (30). The clamp also has a bar (40) and an arm (41) which engages with a drive shaft and transmits a rotation to the bar.

Description

La présente invention est relative à un dispositif de taquage latéral d'éléments plats dans une table de marge d'une machine à découper ou d'une presse à platines. Sur une telle table, l'élément plat est avancé contre un ou plusieurs taquets frontaux par des premiers moyens, tels qu'un chemin à bandes ou à galets, puis est amené par des seconds moyens, objet de l'invention, contre un ou plusieurs taquets latéraux de positionnement avant que le bord frontal de cet élément ne soit saisi par une série de pinces montées sur une barre d'entraînement.The present invention relates to a device for lateral jogging of flat elements in a margin table of a cutting machine or of a plate press. On such a table, the flat element is advanced against one or more front cleats by first means, such as a strip or roller track, then is brought by second means, object of the invention, against one or more several lateral positioning tabs before the front edge of this element is gripped by a series of pliers mounted on a drive bar.

Un tel dispositif est utilisé pour le positionnement précis latéral d'éléments plats ayant déjà reçus une ou plusieurs impressions, l'opération ultérieure pouvant être, soit une impression additionnelle dans une presse à platines, soit une opération de découpe et de rejet des déchets dans une telle presse, cette opération ultérieure devant être réalisée en concordance rigoureuse avec les impressions antérieures.Such a device is used for the precise lateral positioning of flat elements having already received one or more impressions, the subsequent operation being either an additional impression in a platen press, or an operation of cutting and rejecting waste into such a press, this subsequent operation to be carried out in strict accordance with the previous impressions.

Des dispositifs de taquage latéral utilisés à ce jour comprennent d'abord une roulette inférieure entraînée en rotation, disposée transversalement au sens de déplacement d'une feuille, et ce proche d'un taquet latéral situé sur le côté gauche de la table, tel que vu également selon le sens de déplacement de la feuille, côté appelé usuellement "côté conducteur". Ces dispositifs comprennent ensuite un galet supérieur monté, à la verticale de la roulette, en l'extrémité d'un bras qui, au repos, est en position haute. Ce bras est régulièrement abaissé à chaque arrivée d'un élément plat contre les taquets frontaux, de telle sorte que le galet supérieur pince cet élément plat contre la roulette inférieure motorisée qui engendre, par traction sur cet élément, un déplacement de correction jusqu'au taquet latéral.Side jogging devices used to date first comprise a lower roller driven in rotation, arranged transversely to the direction of movement of a sheet, and this close to a lateral cleat located on the left side of the table, such as also seen in the direction of movement of the sheet, side usually called "driver side". These devices then include an upper roller mounted, vertical to the roller, at the end of an arm which, at rest, is in the high position. This arm is regularly lowered on each arrival of a flat element against the front tabs, so that the upper roller pinches this flat element against the lower motorized wheel which generates, by pulling on this element, a correction movement until side cleat.

Un dispositif complémentaire situé à l'entrée du dispositif de taquage vérifie l'unicité de la feuille prise en compte. Ce dispositif est formé de deux roulettes inférieure et supérieure situées dans un même plan vertical orienté dans le sens de déplacement de l'élément, et dont l'écartement est réglé pour ne correspondre qu'à l'épaisseur d'un seul élément.An additional device located at the entrance to the jogging device checks the uniqueness of the sheet taken into account. This device is formed by two lower and upper rollers situated in the same vertical plane oriented in the direction of movement of the element, and the spacing of which is adjusted to correspond only to the thickness of a single element.

Le taquage correct de l'élément plat est vérifié par le déplacement d'une lame ressort située devant le taquet, lequel déplacement est constaté par l'arrivée à proximité d'un détecteur magnétique d'un drapeau métallique solidaire de la lame.The correct jogging of the flat element is verified by the displacement of a spring blade located in front of the cleat, which displacement is noted by the arrival near a magnetic detector of a metal flag secured to the blade.

Fonctionnant à satisfaction pour des feuilles de papier ou de carton de caractéristiques moyennes, ces dispositifs montrent toutefois leur limite dès lors que le grammage devient trop lourd pour la force de traction disponible. De plus, on ne peut guère utiliser de tels dispositifs pour des cartons ondulés car le pincement entre le galet et la roulette a tendance à écraser les cannelures. Enfin, le point d'application de la force de traction est intangible car fixé par les dimensions du dispositif, ce qui peut être une gêne selon les formes de l'élément plat et/ou du type d'impressions d'une série donnée.Operating satisfactorily for sheets of paper or cardboard of average characteristics, these devices however show their limit as soon as the grammage becomes too heavy for the available tensile force. In addition, such devices can hardly be used for corrugated cardboard because the pinching between the roller and the roller tends to crush the grooves. Finally, the point of application of the tensile force is intangible because it is fixed by the dimensions of the device, which can be a nuisance depending on the shapes of the flat element and / or the type of prints of a given series.

Ces problèmes sont partiellement résolus actuellement par un autre dispositif disposé sur le côté droit de la table, appelé "côté opposé conducteur", et qui comprend un organe venant pousser transversalement sur la tranche latérale de l'élément plat. Toutefois, ce dispositif ne fonctionne correctement que si l'élément est suffisamment rigide pour supporter sur toute sa largeur une telle poussée rapide. De plus, l'installation, le réglage spécial puis le démontage ultérieur de ce dispositif supplémentaire coûteux implique de longs temps morts de production entre chaque série.These problems are partially solved at present by another device arranged on the right side of the table, called "opposite side conductor", and which comprises a member pushing transversely on the lateral edge of the flat element. However, this device only works correctly if the element is rigid enough to withstand over its entire width such a rapid push. In addition, the installation, special adjustment and subsequent disassembly of this expensive additional device involves long production dead times between each series.

Le but de la présente invention est un dispositif de taquage latéral qui, comme auparavant, soit rapide, efficace et fiable, mais qui, de plus, présente beaucoup moins de risque d'altérer les surfaces de prise de l'élément plat. Un autre but de la présente invention est un dispositif qui puisse être transformé en un dispositif tireur ou pousseur avec les mêmes composants, et ce en une position d'action réglable à volonté tout le long de la largeur de l'élément plat.The object of the present invention is a lateral jogging device which, as before, is fast, efficient and reliable, but which, moreover, presents much less risk of altering the gripping surfaces of the flat element. Another object of the present invention is a device which can be transformed into a pulling or pushing device with the same components, and this in an action position adjustable at will throughout the width of the flat element.

Ce but est réalisé par un dispositif comprenant des moyens inférieurs d'amenée de l'élément plat contre un ou plusieurs taquets latéraux et des moyens supérieurs d'application de l'élément plat contre les moyens inférieurs, ces moyens supérieurs étant montés, au-dessus des moyens inférieurs, sur une barre s'abaissant lorsque l'élément plat est en butée contre un ou plusieurs taquets frontaux, du fait que les moyens inférieurs comprennent une tirette déplacée, lors de l'abaissement de la barre, vers le taquet latéral, et du fait que les moyens supérieurs montés sur la barre comprennent un patin mobile en translation le long d'un axe parallèle à la tirette de telle sorte à suivre le déplacement de l'élément plat et de la tirette lorsque pressé par la barre contre l'élément plat, un moyen élastique ramenant le patin en sa position initiale lorsque la barre est relevée.This object is achieved by a device comprising lower means for bringing the flat element against one or more lateral cleats and upper means for applying the flat element against the lower means, these upper means being mounted, au- above the lower means, on a bar lowering when the flat element is in abutment against one or more front tabs, owing to the fact that the lower means comprise a pull rod moved, when the bar is lowered, towards the lateral cleat , and the fact that the upper means mounted on the bar comprise a shoe movable in translation along an axis parallel to the pull tab so as to follow the movement of the flat element and the pull tab when pressed by the bar against the flat element, an elastic means bringing the shoe back to its initial position when the bar is raised.

La force de traction si appliquée du côté gauche, ou de poussée si appliquée du côté droit, sur l'élément plat ne se fait plus selon une simple ligne comme dans les dispositifs connus, mais selon une surface de contact définie par l'intersection de la surface inférieure du patin et la surface supérieure en correspondance de la tirette. Typiquement, le patin présente une surface inférieure rectangulaire de l'ordre de 2 cm par 3 cm, la tirette ayant une épaisseur également de l'ordre de 2 cm.The pulling force if applied on the left side, or the pushing force if applied on the right side, on the flat element is no longer done in a single line as in known devices, but in a contact surface defined by the intersection of the lower surface of the skate and the upper surface in correspondence of the zipper. Typically, the pad has a rectangular bottom surface of the order of 2 cm by 3 cm, the zipper also having a thickness of the order of 2 cm.

De plus, si une force supérieure s'avère nécessaire sans devoir augmenter la pression du patin, on peut soit sélectionner un patin plus long, soit améliorer les coefficients de friction des contacts tirette-élément plat et/ou élément plat-patin.In addition, if a higher force is necessary without having to increase the pressure of the skate, you can either select a longer pad, or improve the friction coefficients of the pull tab-flat element and / or flat-pad element contacts.

Avantageusement, la face inférieure du patin est réalisée en matière synthétique à base de caoutchouc présentant un coefficient de friction élevé.Advantageously, the underside of the pad is made of synthetic material based on rubber having a high coefficient of friction.

Selon un mode de réalisation avantageux, le patin est enfilé sur un axe porté par l'extrémité d'un balancier sensiblement horizontal pivotant autour de son autre extrémité dans un plan vertical, dont la course vers le bas est limitée par un crochet de retenue agissant sur le balancier ou sur l'axe, et dont la course vers le haut s'effectue contre un moyen de rappel agissant verticalement entre une butée supérieure et soit le balancier, soit l'axe. Le balancier peut se présenter sous la forme d'une fourche sensiblement horizontale, l'axe de support du patin passant au travers de l'extrémité de chacune des deux branches.According to an advantageous embodiment, the shoe is threaded on an axis carried by the end of a substantially horizontal balance pivoting around its other end in a vertical plane, the downward travel of which is limited by an acting retaining hook on the pendulum or on the axis, and the upward movement of which takes place against a return means acting vertically between an upper stop and either the balance or the axis. The balance can be in the form of a substantially horizontal fork, the support axis of the shoe passing through the end of each of the two branches.

Ainsi, en sélectionnant le moyen de rappel, il est possible de moduler la force d'appui du patin sur l'élément plat. Mieux, la position verticale de la butée supérieure de l'élément de rappel peut être réglable, notamment cette butée étant solidaire de l'extrémité d'une molette de réglage vertical dont le filetage externe est engagé dans un orifice taraudé d'une pièce solidaire de la barre. Grâce à cette molette particulièrement facile d'accès, ce réglage de la force d'appui devient aisé.Thus, by selecting the return means, it is possible to modulate the bearing force of the pad on the flat element. Better still, the vertical position of the upper stop of the return element can be adjustable, in particular this stop being secured to the end of a vertical adjustment wheel, the external thread of which is engaged in a threaded orifice of an integral piece. from the bar. Thanks to this particularly easy-access wheel, this adjustment of the pressing force becomes easy.

Avantageusement, le crochet de retenue est solidaire de l'extrémité inférieure d'une tige dont l'extrémité supérieure filetée est engagée dans un écrou de réglage reposant sur une pièce solidaire de la barre. En tournant cet écrou, on peut donc également régler la position initiale du balancier, donc du patin par rapport à la barre. Ce réglage de la position initiale peut être mis à profit en complément lors du réglage de la force d'appui du patin. Ce réglage peut également permettre, en coordonnant l'abaissement de la barre et l'avance de l'élément plat, d'obtenir un dispositif de vérification de l'unicité de l'élément plat pris en compte.Advantageously, the retaining hook is secured to the lower end of a rod, the threaded upper end of which is engaged in an adjustment nut resting on a part secured to the bar. By turning this nut, it is therefore also possible to adjust the initial position of the pendulum, and therefore of the shoe with respect to the bar. This adjustment of the initial position can be taken advantage of in addition when adjusting the support force of the skate. This adjustment can also make it possible, by coordinating the lowering of the bar and the advance of the flat element, to obtain a device for checking the uniqueness of the flat element taken into account.

Utilement, un loquet peut être inséré à volonté entre l'écrou de réglage et la pièce solidaire de la barre permettant de maintenir le balancier et le patin en une position haute dans laquelle le patin reste toujours au-dessus de l'élément plat lorsque la barre est abaissée. On dispose ainsi d'un moyen commode et facilement réalisable pour rendre inopérant le dispositif de taquage lorsque momentanément désiré.Usefully, a latch can be inserted at will between the adjusting nut and the integral part of the bar making it possible to maintain the balance and the shoe in a high position in which the shoe always remains above the flat element when the bar is lowered. There is thus a convenient and easily achievable means for rendering the jogging device inoperative when momentarily desired.

Avantageusement, le moyen élastique ramenant le patin en sa position initiale lorsque la barre est relevée est constitué d'un ressort enfilé sur un second axe porté par l'extrémité du balancier, et ce proche et parallèlement au premier axe de support du patin, ce ressort agissant entre le balancier et un anneau solidaire du patin, passant par ce second axe. Cet agencement permet de réduire sensiblement l'encombrement des moyens supérieurs d'application de l'élément plat pour les incorporer dans un bloc compact fixé sur la barre.Advantageously, the elastic means bringing the shoe back to its initial position when the bar is raised consists of a spring threaded on a second axis carried by the end of the pendulum, and this close and parallel to the first support axis of the shoe, this spring acting between the balance and a ring secured to the shoe, passing through this second axis. This arrangement makes it possible to substantially reduce the size of the upper means for applying the flat element in order to incorporate them into a compact block fixed to the bar.

Utilement, les moyens supérieurs d'application de l'élément plat sont contenus dans un bloc dont la structure présente une symétrique par rapport au plan vertical médian parallèle à l'axe de déplacement des éléments plats, ce bloc étant enfilé sur la barre où il est serré en position par un organe de serrage tel qu'un axe fileté traversant le bloc au travers d'un orifice taraudé, l'extrémité externe étant munie d'une poignée, l'extrémité interne prenant appui contre la barre. Cette symétrie de conception du bloc, contenant le balancier avec le patin et son ressort, le moyen de rappel de réglage de la pression, et la tige-porte-crochet, permet d'y agencer ces organes soit pour un taquage vers le côté conducteur, soit pour un taquage vers le côté opposé au conducteur, et ce sans besoin de pièce supplémentaire.Usefully, the upper means for applying the flat element are contained in a block, the structure of which has a symmetry with respect to the vertical median plane parallel to the axis of movement of the flat elements, this block being threaded onto the bar where it is clamped in position by a clamping member such as a threaded axis passing through the block through a threaded orifice, the outer end being provided with a handle, the inner end pressing against the bar. This symmetry of design of the block, containing the balance with the shoe and its spring, the pressure adjustment return means, and the hook-carrying rod, makes it possible to arrange these members there either for jogging towards the driver side , or for jogging towards the side opposite the conductor, and this without the need for additional parts.

Avantageusement, la tirette et la barre s'étendent sur toute la largeur de la table, la tirette étant installée dans une rainure ménagée le long de la surface supérieure d'une traverse de la table, chaque côté de la barre étant tenu par l'extrémité supérieure d'un bras oblique dont l'extrémité inférieure est fixée, mobile en rotation, aux côtés du châssis de la table, si désiré au travers d'une plaque intermédiaire de support.Advantageously, the zipper and the bar extend over the entire width of the table, the zipper being installed in a groove formed along the upper surface of a crosspiece of the table, each side of the bar being held by the upper end of an oblique arm whose lower end is fixed, movable in rotation, alongside the table frame, if desired through an intermediate support plate.

Cet agencement permet de positionner le bloc contenant les moyens supérieurs d'application en n'importe quel point du bord frontal de l'élément plat pour tenir compte de sa géométrie et/ou des caractéristiques des impressions y figurant. Une position du bloc proche du bord gauche de la table engendre plutôt une traction, alors qu'une position de ce même bloc proche du bord droit de la table induit plutôt une poussée sur l'élément plat. En d'autres termes, les mêmes moyens inférieurs et supérieurs, chacun mis en oeuvre par leur moyens de commande et d'actionnement uniques, permettent d'effectuer aussi bien une opération de traction que de poussée. Cet agencement permet une économie substantielle du fait que l'on peut s'affranchir du dédoublement de dispositifs antérieurs. Enfin, en montant une paire de blocs, on peut effectuer simultanément une traction et une poussée coordonnées si nécessaire.This arrangement makes it possible to position the block containing the upper application means at any point on the front edge of the flat element to take account of its geometry and / or the characteristics of the impressions appearing therein. A position of the block close to the left edge of the table rather generates a traction, while a position of this same block close to the right edge of the table rather induces a push on the flat element. In other words, the same lower and upper means, each implemented by their unique control and actuation means, make it possible to carry out both a traction and a pushing operation. This arrangement allows a substantial saving of the fact that one can get rid of the duplication of previous devices. Finally, by mounting a pair of blocks, a coordinated pull and push can be performed simultaneously if necessary.

Utilement, le dispositif de commande et d'actionnement de la barre abaissant celle-ci lorsque l'élément plat est en butée contre un taquet frontal peut comprendre un galet vertical rotatif de lecture monté, d'un côté ou de l'autre, soit sur le bras latéral de la barre soit sur un prolongement du bras au-delà de son point de rotation, ce galet reposant sur une came verticale parallèle au bras et entrai- née à partir des moyens d'avance de l'élément plat sur la table, des moyens de rappel agissant vers le haut respectivement soit sur un prolongement du bras au-delà de son point de rotation, soit sur le bras latéral.Usefully, the device for controlling and actuating the bar lowering the bar when the flat element is in abutment against a front stop may include a vertical rotating reading roller mounted on one side or the other, either on the lateral arm of the bar or on an extension of the arm beyond its point of rotation, this roller resting on a vertical cam parallel to the arm and enti- born from the means for advancing the flat element on the table, return means acting upwards either on an extension of the arm beyond its point of rotation, or on the lateral arm.

Utilement, les bras de la barre sont fixés aux côtés du châssis de la table ou à des plaques intermédiaires de support à la fois mobiles en rotation et en translation parallèlement à la barre, des moyens de réglage comprenant une vis engagée dans le châssis ou l'une des plaques permettant d'ajuster la position latérale de la barre par rapport à la table. Après un positionnement grossier d'un bloc le long de la barre, ces moyens de réglage situés à l'extrémité de la barre, de préférence du côté conducteur, permettent d'effectuer aisément un réglage fin ultime de la position du bloc.Usefully, the arms of the bar are fixed to the sides of the table frame or to intermediate support plates which are both mobile in rotation and in translation parallel to the bar, adjustment means comprising a screw engaged in the frame or the 'one of the plates to adjust the lateral position of the bar relative to the table. After a rough positioning of a block along the bar, these adjustment means located at the end of the bar, preferably on the driver's side, make it possible to easily carry out an ultimate fine adjustment of the position of the block.

Utilement encore, le dispositif de commande et d'actionnement de la tirette déplaçant celle-ci vers le taquet latéral lors de l'abaissement de la barre comprend un galet rotatif de lecture monté à l'une des extrémités de la tirette, si désiré au travers d'un plot d'attache prolongé d'une tige, la tirette, ou le plot ou la tige, étant poussé par un moyen de rappel pour maintenir le galet contre une came dont l'action s'effectue dans l'axe de la tirette.Also usefully, the device for controlling and actuating the zipper moving the latter towards the lateral stop when the bar is lowered comprises a rotary reading roller mounted at one end of the zipper, if desired at the through an extended attachment stud of a rod, the pull tab, or the stud or rod, being pushed by a return means to hold the roller against a cam whose action takes place in the axis of the zipper.

De tels dispositifs de commande de conception simple s'avèrent dans la pratique fiables et efficaces. De plus, un simple retournement de la came de la tirette d'un demi tour suffit pour piloter la tirette vers la droite ou vers la gauche de la table au moment où la barre s'abaisse.Such control devices of simple design prove in practice reliable and effective. In addition, a simple turn of the zipper cam by half a turn is enough to pilot the zipper to the right or to the left of the table when the bar lowers.

L'invention sera mieux comprise à l'étude d'un mode de réalisation pris à titre d'exemple nullement limitatif, et illustré dans les figures annexées dans lesquelles :

  • - la figure 1 est une vue en perspective du dispositif selon l'invention tel que vu en aval du côté conducteur,
  • - la figure 2 est une vue en perspective du dispositif de la figure 1 tel que vu en amont du côté conducteur, et
  • - les figures 3AA, 3BB et 3CC sont des vues d'un bloc de moyens supérieurs d'application respectivement en coupe verticale longitudinale, en coupe verticale transversale et en coupe horizontale. Dans ces figures, une même référence désigne toujours une même pièce du dispositif.
The invention will be better understood on studying an embodiment taken by way of nonlimiting example, and illustrated in the appended figures in which:
  • FIG. 1 is a perspective view of the device according to the invention as seen downstream from the driver side,
  • FIG. 2 is a perspective view of the device in FIG. 1 as seen upstream from the driver side, and
  • - Figures 3AA, 3BB and 3CC are views of a block of upper application means respectively in longitudinal vertical section, in vertical cross section and in horizontal section. In these figures, the same reference always designates the same part of the device.

Comme illustré sur les figures 1 et 2, le dispositif de taquage latéral selon l'invention peut être inclus dans un cadre intermédiaire autonome comprenant deux plaques de support latéral 10 et 12 reliées entre elles par une traverse 14, ce cadre pouvant être installé ou démonté à volonté hors de la partie aval d'une station de marge au sein d'une machine de traitement d'éléments plats.As illustrated in FIGS. 1 and 2, the lateral jogging device according to the invention can be included in an autonomous intermediate frame comprising two lateral support plates 10 and 12 connected together by a cross member 14, this frame being able to be installed or dismantled at will outside the downstream part of a margin station in a flat element processing machine.

Ce dispositif comprend, dans sa partie inférieure, une tirette 20 installée en coulissement transversal à l'intérieur d'une rainure 16 ménagée dans la surface supérieure de la traverse 14, Une pluralité de guides 21 est fixée à la tirette 20, par exemple par des vis, ces guides étant mobiles à l'intérieur d'ouvertures longitudinales 18 ménagées dans la traverse de part et d'autre de la rainure 16. Ces guides 21 préviennent tout mouvement intempestif de la tirette 20 dans le sens vertical qui pourrait la faire sortir hors de la rainure.This device comprises, in its lower part, a pull tab 20 installed in transverse sliding inside a groove 16 formed in the upper surface of the cross member 14. A plurality of guides 21 is fixed to the pull tab 20, for example by screws, these guides being movable inside longitudinal openings 18 formed in the cross member on either side of the groove 16. These guides 21 prevent any untimely movement of the pull tab 20 in the vertical direction which could make it come out of the groove.

L'extrémité "du côté opposé au conducteur" de la tirette 20, c'est-à-dire du côté gauche sur la figure 1 et du côté droit sur la figure 2, est reliée par un plot d'attache 22 à une tige de prolongement 24 traversant la plaque de support 12 au travers d'un palier 25 solidaire de cette plaque. Comme mieux visible sur la figure 2, ce plot 22 est complété d'une butée 23 contre laquelle agit un ressort de poussée 32 dont l'autre extrémité s'appuie sur une protubérance latérale de la traverse 14. Ainsi agencé, ce ressort 32 pousse, au repos, la tirette 20, le plot 22 et la tige 24 vers l'extérieur du côté opposé au conducteur.The end "on the side opposite the conductor" of the pull tab 20, that is to say on the left side in FIG. 1 and on the right side in FIG. 2, is connected by an attachment stud 22 to a rod. extension 24 passing through the support plate 12 through a bearing 25 integral with this plate. As best seen in FIG. 2, this stud 22 is completed with a stop 23 against which a thrust spring 32 acts, the other end of which rests on a lateral protuberance of the cross member 14. Thus arranged, this spring 32 pushes , at rest, the pull tab 20, the stud 22 and the rod 24 outwards on the side opposite the conductor.

L'extrémité de la tige 24 est formée en fourche afin de tenir un galet de lecture 26 prenant appui contre une came transversale dont l'épaisseur est variable de sorte que son action se fasse dans le sens longitudinal de la tirette 20. De préférence, ce galet de lecture 26 est tenu dans son déplacement par un guide 27 évoluant à l'intérieur d'une fourche de guidage 28 solidaire de la plaque de support 12, par exemple en étant fixé au palier 25. Si désiré, la came 30 aurait également pu se présenter sous la forme d'un disque ovale parallèle au guide 28. Dans le mode de réalisation illustré, cette came 30 imprime à chaque tour deux mouvements d'aller/retour à la tirette 20.The end of the rod 24 is formed in a fork in order to hold a reading roller 26 bearing against a transverse cam whose thickness is variable so that its action takes place in the longitudinal direction of the pull tab 20. Preferably, this read roller 26 is held in its movement by a guide 27 evolving inside a guide fork 28 secured to the support plate 12, for example by being fixed to the bearing 25. If desired, the cam 30 would also could be in the form of an oval disc parallel to the guide 28. In the illustrated embodiment, this cam 30 prints two round trips to the pull tab 20 at each turn.

Ce dispositif comprend, dans sa partie supérieure, d'abord une barre 40 tenue en son extrémité "côté opposé au conducteur" par l'extrémité supérieure d'un bras 41 et en son extrémité "côté conducteur" par l'extrémité supérieure d'un second bras similaire 42.This device comprises, in its upper part, firstly a bar 40 held at its end "side opposite to the conductor" by the upper end of an arm 41 and at its end "driver side" by the upper end of a second similar arm 42.

L'extrémité inférieure du bras 41 est engagée par un encoche en U inversé dans un axe d'entraînement 44 présentant, en correspondance, deux plats opposés. Ce mode d'engagement permet d'assurer la transmission d'un couple de rotation à la barre 41 tout en lui autorisant un déplacement transversal sur une certaine plage.The lower end of the arm 41 is engaged by an inverted U-shaped notch in a drive axis 44 having, in correspondence, two opposite dishes. This engagement mode ensures the transmission of a torque to the bar 41 while allowing it to move transversely over a certain range.

Sur le même axe, est monté un bras d'entraînement 45 parallèlement au bras 41, ces deux bras étant reliés par l'axe de rotation d'un galet de lecture 46. Ce galet de lecture 46 appuie sur une came 48 légèrement ovale de levée de barre. Cette came 48 est donc disposée verticalement et parallèlement aux bras 41 et 45. Cette came 48 est entraînée simultanément avec la came 30 de la tirette 20 par une prise de force 35 d'entraînement générale de la station de la machine, cet entraînement étant donc également coordonné avec les moyens d'avancée des éléments plats non illustres.On the same axis, a drive arm 45 is mounted parallel to the arm 41, these two arms being connected by the axis of rotation of a reading roller 46. This reading roller 46 presses on a cam 48 slightly oval of lifting the bar. This cam 48 is therefore arranged vertically and parallel to the arms 41 and 45. This cam 48 is driven simultaneously with the cam 30 of the pull tab 20 by a power take-off 35 for general drive of the station of the machine, this drive therefore also being coordinated with the means for advancing the non-illustrated flat elements.

Les bras 41 et 45 présentent, au-delà de leur point de rotation inférieure, une extension 47 recevant la poussée orientée vers le haut d'un ressort inférieur vertical non illustré dont l'extrémité inférieure repose sur une butée solidaire de la plaque 12. En d'autres termes, l'action du ressort non illustré tend à basculer les bras 41, 42 dans le sens inverse des aiguilles d'une montre, tel qu'illustré sur les figures 1 et 2, alors que l'action de la came 48 sur le galet de lecture 46 tend à relever la barre 40 à intervalles réguliers en une rotation des bras 41, 42 effectuée dans le sens des aiguilles d'une montre.The arms 41 and 45 have, beyond their lower point of rotation, an extension 47 receiving the thrust directed upwards from a vertical lower spring not shown, the lower end of which rests on a stop integral with the plate 12. In other words, the action of the spring, not shown, tends to tilt the arms 41, 42 anticlockwise, as illustrated in FIGS. 1 and 2, while the action of the cam 48 on the read roller 46 tends to raise the bar 40 at regular intervals in a rotation of the arms 41, 42 carried out in a clockwise direction.

Du côté conducteur, l'extrémité inférieure du bras 42 est montée dans un palier 43 dont la couronne externe peut être avancée ou reculée à l'intérieur du boîtier par action sur une vis de réglage 49. Ainsi, par déplacement de ce palier, donc par déplacement transversal du bras 42, on peut régler de manière très fine la position latérale de la barre 40, l'encoche en U de l'extrémité inférieure du bras 41 étant déplacée d'autant par rapport à l'axe d'entraînement 44.On the driver's side, the lower end of the arm 42 is mounted in a bearing 43 whose outer ring can be advanced or moved back inside the housing by action on an adjustment screw 49. Thus, by displacement of this bearing, therefore by transverse displacement of the arm 42, the lateral position of the bar 40 can be adjusted in a very fine manner, the U-shaped notch of the lower end of the arm 41 being displaced as much relative to the drive axis 44 .

Sur cette barre 40 peut être installé un bloc tireur 50 du côté conducteur et/ou un bloc pousseur 52 du côté opposé au conducteur. Dans le mode de réalisation tel qu'illustré et prévu pour un taquage latéral du côté conducteur, la seule différence entre les blocs 50 et 52 est l'installation, sur le côté du bloc 50, de la butée de taquage 70 des éléments plats. Cette butée de taquage est complétée d'un côté par une lame ressort 72 qui, lorsque pressée par un élément plat, rapproche un drapeau d'un détecteur magnétique de proximité 74.On this bar 40 can be installed a pulling block 50 on the driver side and / or a pusher block 52 on the side opposite to the driver. In the embodiment as illustrated and intended for a side jogging on the driver side, the only difference between the blocks 50 and 52 is the installation, on the side of the block 50, of the jogging stop 70 of the flat elements. This jogging stop is completed on one side by a spring blade 72 which, when pressed by a flat element, brings a flag closer to a magnetic proximity detector 74.

La description suivante du bloc 50 se fera plus précisément au vu des figures 3, les figures 1 et 2 illustrant, dans l'espace, la disposition de quelques éléments constitutifs.The following description of block 50 will be more precisely in the light of FIGS. 3, FIGS. 1 and 2 illustrating, in space, the arrangement of a few constituent elements.

Le boîtier du bloc 50 se compose de deux coques : une amont 60 et une aval 62. La coque 60 porte, en son bord inférieur amont, un axe 65 sur lequel est monté, en rotation dans un plan vertical, un balancier 64 se présentant sous la forme d'une fourche orientée du côté aval. Entre les deux branches de la fourche composant le balancier 64 sont montés deux axes parallèles 86 et 88.The housing of the block 50 consists of two shells: an upstream 60 and a downstream 62. The hull 60 carries, at its upstream lower edge, a pin 65 on which is mounted, in rotation in a vertical plane, a pendulum 64 having in the form of a fork oriented on the downstream side. Between the two branches of the fork making up the balance 64 are mounted two parallel axes 86 and 88.

Un patin 80 est enfilé par dessus le premier axe externe 86, et ce mobile en translation facilité par un chemin de billes 84. Ce patin 80 présente une extension latérale sous la forme d'un anneau 82 enfilé autour du second axe interne 88, cet anneau constituant une butée pour un ressort 89 également enfilé par dessus cet axe 88 et prenant par ailleurs appui contre la branche du balancier 64. Tout déplacement du patin 80 vers le côté conducteur, et ce le long de l'axe 86, s'effectue donc contre l'effet de la compression du ressort 89.A shoe 80 is threaded over the first external axis 86, and this mobile in translation facilitated by a track of balls 84. This shoe 80 has a lateral extension in the form of a ring 82 threaded around the second internal axis 88, this ring constituting a stop for a spring 89 also threaded over this axis 88 and also bearing against the arm of the pendulum 64. Any movement of the shoe 80 towards the driver side, and this along the axis 86, is carried out therefore against the effect of the compression of the spring 89.

Comme mieux visible sur la figure 3AA, un étrier 90, pressé vers le bas par un ressort 92, appuie sur l'extrémité de chacune des branches composant la fourche du balancier 64. L'extrémité supérieure de ce ressort 92 s'appuie contre une butée 94 solidaire de l'extrémité inférieure d'une molette de réglage 96 dont le filetage extérieur est en prise avec le taraudage d'un orifice ménagé dans la paroi supérieure de la coque 62. Ainsi, par rotation sur la molette 96, on peut plus ou moins monter la butée 94, donc régler la force d'appui du ressort 92.As best seen in FIG. 3AA, a stirrup 90, pressed downwards by a spring 92, presses on the end of each of the branches making up the fork of the pendulum 64. The upper end of this spring 92 rests against a stop 94 integral with the lower end of an adjustment wheel 96 whose external thread is engaged with the thread of an orifice formed in the upper wall of the shell 62. Thus, by rotation on the wheel 96, it is possible to more or less mount the stop 94, so adjust the bearing force of the spring 92.

Par ailleurs, une extension de l'axe 86 est prise dans un crochet 102 solidaire de l'extrémité inférieure d'une tige de retenue 100 dont l'extrémité supérieure filetée 104 est engagée dans un écrou de réglage 106. La face inférieure de cet écrou 106 repose normalement contre la face supérieure de la coque 62. Ainsi, par simple rotation de cet écrou, on peut plus ou moins monter le crochet de retenue 102 ce qui fixe la hauteur initiale de l'axe 86, donc du patin 80. Un contre-écrou 108 permet de bloquer ce réglage.Furthermore, an extension of the axis 86 is taken in a hook 102 integral with the lower end of a retaining rod 100, the threaded upper end 104 of which is engaged in an adjustment nut 106. The lower face of this nut 106 normally rests against the upper face of the shell 62. Thus, by simple rotation of this nut, it is more or less possible to mount the retaining hook 102 which fixes the initial height of the axis 86, therefore of the shoe 80. A lock nut 108 makes it possible to block this adjustment.

Si désiré, l'écrou de réglage 106 est momentanément relevé pour installer un loquet 110 par dessus la face supérieure de la coque 62, la position du crochet de retenue 102 étant alors volontairement plus haute que nécessaire.If desired, the adjusting nut 106 is temporarily raised to install a latch 110 over the upper face of the shell 62, the position of the retaining hook 102 then being deliberately higher than necessary.

La coque amont 60 présente, au-dessus du balancier 64, un passage transversal permettant au bloc 50 d'être installé autour de la barre 40, une tige filetée 111 tournée au moyen d'une poignée 112 permettant de bloquer la position par serrage.The upstream shell 60 has, above the balance 64, a transverse passage allowing the block 50 to be installed around the bar 40, a threaded rod 111 turned by means of a handle 112 making it possible to block the position by tightening.

Une plaque déflectrice 114 protège le balancier 64 contre le bord frontal d'éléments plats normalement prévu pour passer en-dessous.A deflector plate 114 protects the pendulum 64 against the front edge of flat elements normally provided to pass below.

Comme visible sur la figure 3 AA, la coque 62 est rigoureusement symétrique par rapport à son plan médian, en l'occurrence le plan de coupe B-B. De cette manière, on peut à tout moment inverser de l'autre côté la position de la tige de retenue 100, de la butée 70 avec ses capteurs 72 et 74, et, après avoir retourné le balancier 64, réinstaller le ressort 89 de l'autre côté de l'anneau 82 de telle sorte que le déplacement du patin 80 s'effectue de la droite vers la gauche et non plus dans le sens inverse comme initialement.As can be seen in FIG. 3 AA, the shell 62 is rigorously symmetrical with respect to its median plane, in this case the cutting plane B-B. In this way, it is possible at any time to reverse on the other side the position of the retaining rod 100, of the stop 70 with its sensors 72 and 74, and, after having turned the pendulum 64, reinstall the spring 89 of the 'other side of the ring 82 so that the movement of the shoe 80 is from right to left and no longer in the opposite direction as initially.

Le dispositif décrit précédemment fonctionne de la manière suivante.The device described above operates in the following manner.

L'un des blocs tireurs 50 ou pousseurs 52 est, si désiré, mis hors service en insérant le loquet 110 sous l'écrou de réglage 106. La position latérale du bloc actif est alors grossièrement réglée en désolidarisant le bloc de la barre 40 et ce par action sur la poignée 112. Le bloc peut alors être déplacé notamment le long d'une réglette graduée 39, puis ce bloc est à nouveau serré contre la barre 40. La position exacte désirée du patin 80 est alors obtenue en agissant sur la vis de réglage 49 qui déplace finement l'ensemble de la barre 40 et le bloc concerné.One of the pulling blocks 50 or pushers 52 is, if desired, put out of service by inserting the latch 110 under the adjusting nut 106. The lateral position the active block is then roughly adjusted by separating the block from the bar 40 and this by action on the handle 112. The block can then be moved in particular along a graduated strip 39, then this block is again tightened against the bar 40. The exact desired position of the shoe 80 is then obtained by acting on the adjustment screw 49 which finely moves the assembly of the bar 40 and the block concerned.

La liaison de la prise d'entraînement de force 35 est réalisée de telle sorte que la came 48 n'abaisse la barre 40 que lorsque l'élément plat a déjà été amené en butée contre des taquets frontaux non illustrés. L'abaissement de la barre 40, donc du bloc 50, fait que le patin 80 vient s'appliquer en sa face inférieure 81 contre l'élément plat et le presse contre la tirette 20 avec une force dépendante du réglage de la butée 94 du ressort vertical 92. Cet élément plat est ainsi serré non plus en une ligne, mais selon la surface d'intersection de la face inférieure 81 du patin 80 et la surface supérieure en correspondance de la tirette 20. Cette surface est de l'ordre de deux centimètres de large sur trois centimètres de long, ce qui répartit régulièrement la force d'application en une pression non susceptible d'altérer les surfaces inférieures et supérieures de contact de cet élément plat.The connection of the PTO 35 is made so that the cam 48 does not lower the bar 40 until the flat element has already been brought into abutment against front tabs not shown. The lowering of the bar 40, therefore of the block 50, causes the shoe 80 to be applied in its lower face 81 against the flat element and press it against the pull tab 20 with a force dependent on the adjustment of the stop 94 of the vertical spring 92. This flat element is thus clamped no longer in a line, but according to the intersection surface of the lower face 81 of the shoe 80 and the upper surface in correspondence of the pull tab 20. This surface is of the order of two centimeters wide by three centimeters long, which regularly distributes the application force in a pressure that is not likely to alter the lower and upper contact surfaces of this flat element.

La came 30, synchronisée avec la came 48, imprime alors à la tirette 20 un mouvement de translation qui emmène l'élément plat en direction de la butée 70, cet élément plat entraînant simultanément le patin 80 qui se déplace contre la compression du ressort 89. Lorsque l'élément plat est stoppé par le taquet 70, la tirette 20 termine sa course en glissant quelque peu par rapport à l'élément plat, la surface supérieure lisse de cette tirette n'endommageant pas pour autant la surface de contact. Simultanément, le drapeau de la lame ressort 72 se rapproche du détecteur de proximité 74 qui confirme le bon achèvement de l'opération. L'élément plat étant taqué, son bord frontal peut être alors saisi par les pinces montées le long d'une barre d'entraînement non illustrée. La came 48 imprime alors un nouveau mouvement de levée à la barre 40, donc au bloc 50. Lorsque le patin 80 est dégagé hors de l'élément plat, son ressort 89 le ramène immédiatement en sa position initiale, tel qu'illustré sur les figures, donc prêt pour l'opération suivante.The cam 30, synchronized with the cam 48, then prints on the pull tab 20 a translational movement which takes the flat element towards the stop 70, this flat element simultaneously driving the shoe 80 which moves against the compression of the spring 89 When the flat element is stopped by the cleat 70, the pull tab 20 ends its race by sliding somewhat with respect to the flat element, the smooth upper surface of this pull tab not damaging the contact surface. Simultaneously, the flag of the spring leaf 72 approaches the proximity detector 74 which confirms the successful completion of the operation. The flat element being jogged, its front edge can then be grasped by the clamps mounted along a drive bar not shown. The cam 48 then prints a new lifting movement at the bar 40, therefore at the block 50. When the shoe 80 is released from the flat element, its spring 89 immediately returns it to its initial position, as illustrated on the figures, so ready for the next operation.

Si l'opération de taquage ne doit plus s'effectuer en direction du "côté conducteur", mais dans la direction opposée, on démonte le bloc 50 pour inverser latéralement les éléments internes, notamment la butée et le sens de déplacement du patin. Parallèlement, on décale la came 30 de 90 ° ou de 180 ° de telle sorte que la tirette se déplace dans l'autre sens au moment de l'abaissement de la barre 40.If the jogging operation must no longer be carried out in the direction of the "driver side", but in the opposite direction, the block 50 is dismantled in order to laterally reverse the internal elements, in particular the stop and the direction of movement of the pad. At the same time, the cam 30 is offset by 90 ° or 180 ° so that the zipper moves in the other direction when the bar 40 is lowered.

Comme on a pu le constater à la lecture de cet exposé, le dispositif selon l'invention permet, avec le même matériel, d'effectuer un taquage vers un premier côté soit par traction, soit par poussée, et ces mêmes opérations dans le sens inverse. De plus, on peut conformer la came 48 pour que la barre s'abaisse très rapidement en une première position dans laquelle le bord inférieur du patin 80 préalablement réglé reste momentanément à une hauteur juste suffisante pour laisser passer un seul élément plat avant de le presser contre la tirette.As we have seen from this presentation, the device according to the invention makes it possible, with the same material, to make a jogging towards a first side either by traction or by pushing, and these same operations in the direction reverse. In addition, the cam 48 can be shaped so that the bar lowers very quickly to a first position in which the lower edge of the pad 80 previously adjusted remains momentarily at a height just sufficient to allow a single flat element to pass before pressing it. against the zipper.

On appréciera que, en modulant la force d'application du patin ainsi que les qualités et les dimensions de sa surface de contact, il est possible d'atteindre une large gamme de forces de traction latérales tout en respectant une pression maximum à ne pas dépasser sans altérer la surface de contact de l'élément plat.It will be appreciated that, by modulating the application force of the skid as well as the qualities and the dimensions of its contact surface, it is possible to achieve a wide range of lateral traction forces while respecting a maximum pressure not to be exceeded. without altering the contact surface of the flat element.

De nombreuses améliorations peuvent être apportées à ce dispositif de taquage latéral dans le cadre des revendications.Many improvements can be made to this lateral jogging device within the scope of the claims.

Claims (10)

1. Dispositif de taquage latéral d'éléments plats sur une table comprenant des moyens inférieurs d'amenée de l'élément plat contre un ou plusieurs taquets latéraux et des moyens supérieurs d'application de l'élément plat contre les moyens inférieurs, ces moyens supérieurs étant montés, au-dessus des moyens inférieurs, sur une barre s'abaissant lorsque l'élément plat est en butée contre un ou plusieurs taquets frontaux, caractérisé en ce que les moyens inférieurs comprennent une tirette (20) déplacée, lors de l'abaissement de la barre (40), vers le taquet latéral (70), et en ce que les moyens supérieurs montés sur la barre (40) comprennent un patin (80) mobile en translation le long d'un axe (86) parallèle à la tirette (20) de manière à suivre le déplacement de l'élément plat et de la tirette lorsque pressé par la barre contre l'élément plat, un moyen élastique (89) ramenant le patin en sa position initiale lorsque la barre est relevée.1. Device for lateral jogging of flat elements on a table comprising lower means for bringing the flat element against one or more lateral cleats and upper means for applying the flat element against the lower means, these means upper being mounted, above the lower means, on a lowering bar when the flat element is in abutment against one or more front cleats, characterized in that the lower means comprise a moved pull tab (20), when the lowering of the bar (40), towards the lateral cleat (70), and in that the upper means mounted on the bar (40) comprise a shoe (80) movable in translation along a parallel axis (86) with the pull tab (20) so as to follow the movement of the flat element and of the pull tab when pressed by the bar against the flat element, an elastic means (89) returning the shoe to its initial position when the bar is raised . 2. Dispositif selon la revendication 1, caractérisé en ce que le patin (80) est enfilé sur un axe (86) porté par l'extrémité d'un balancier (64) sensiblement horizontal pivotant autour de son autre extrémité dans un plan vertical, dont la course vers le bas est limitée par un crochet de retenue (102) agissant sur le balancier ou sur l'axe, et dont la course vers le haut s'effectue contre un moyen de rappel (92) agissant verticalement entre une butée supérieure (94) et soit le balancier (64) soit l'axe (86). 3. Dispositif selon la revendication 2, caractérisé en ce que la position verticale de la butée supérieure (94) du moyen de rappel (92) agissant verticalement est réglable, notamment cette butée (94) étant solidaire de l'extrémité d'une molette de réglage (96) verticale dont le filetage externe est engagé dans un orifice taraudé d'une pièce (60) solidaire de la barre (40).2. Device according to claim 1, characterized in that the shoe (80) is threaded on an axis (86) carried by the end of a pendulum (64) substantially horizontal pivoting around its other end in a vertical plane, whose downward stroke is limited by a retaining hook (102) acting on the pendulum or on the axis, and whose upward stroke is effected against a return means (92) acting vertically between an upper stop (94) and either the balance (64) or the axis (86). 3. Device according to claim 2, characterized in that the vertical position of the upper stop (94) of the return means (92) acting vertically is adjustable, in particular this stop (94) being integral with the end of a wheel vertical adjustment (96) whose external thread is engaged in a threaded orifice of a part (60) integral with the bar (40). 4. Dispositif selon la revendication 2, caractérisé en ce que le crochet de retenue (102) est solidaire de l'extrémité inférieure d'une tige (100) dont l'extrémité supérieure filetée est engagée dans un écrou de réglage (106) reposant sur une pièce solidaire (60) de la barre.4. Device according to claim 2, characterized in that the retaining hook (102) is integral with the lower end of a rod (100) whose upper threaded end is engaged in an adjusting nut (106) resting on an integral part (60) of the bar. 5. Dispositif selon la revendication 4, caractérisé en ce qu'un loquet (110) peut être inséré à volonté entre l'écrou de réglage (106) et la pièce (60) solidaire de la barre permettant de maintenir le balancier (64) et le patin (80) en une position haute dans laquelle le patin reste toujours au-dessus de l'élément plat lorsque la barre (40) est abaissée.5. Device according to claim 4, characterized in that a latch (110) can be inserted at will between the adjusting nut (106) and the part (60) integral with the bar for holding the balance (64) and the shoe (80) in a high position in which the shoe always remains above the flat element when the bar (40) is lowered. 6. Dispositif selon la revendication 2, caractérisé en ce que le moyen élastique ramenant le patin (80) en sa position initiale lorsque la barre (40) est relevée est constitué d'un ressort (89) enfilé sur un second axe (88) porté par l'extrémité du balancier (64), et ce proche et parallèlement au premier axe (86) de support du patin (80), ce ressort agissant entre le balancier (64) et un anneau (82) solidaire du patin et passant par ce second axe (88).6. Device according to claim 2, characterized in that the elastic means returning the pad (80) to its initial position when the bar (40) is raised consists of a spring (89) threaded on a second axis (88) carried by the end of the pendulum (64), and close to and parallel to the first axis (86) for supporting the pad (80), this spring acting between the pendulum (64) and a ring (82) integral with the pad and passing by this second axis (88). 7. Dispositif selon la revendication 1, caractérisé en ce que les moyens supérieurs (64, 65, 80, 86, 88, 89, 90, 92, 96, 100, 106) d'application de l'élément plat sont contenus dans un bloc (60, 62) dont la structure présente une symétrique par rapport au plan vertical médian parallèle à l'axe de déplacement des éléments plats, ce bloc étant enfilé sur la barre (40) où il est serré en position par un organe de serrage, par exemple un axe fileté (111) traversant le bloc (60) au travers d'un orifice taraudé, l'extrémité externe étant munie d'une poignée (112), l'extrémité interne prenant appui contre la barre (40).7. Device according to claim 1, characterized in that the upper means (64, 65, 80, 86, 88, 89, 90, 92, 96, 100, 106) for applying the flat element are contained in a block (60, 62) whose structure has a symmetry with respect to the median vertical plane parallel to the axis of movement of the flat elements, this block being threaded on the bar (40) where it is clamped in position by a clamping member , for example a threaded axis (111) passing through the block (60) through a threaded orifice, the outer end being provided with a handle (112), the inner end pressing against the bar (40). 8. Dispositif selon la revendication 1, caractérisé en ce que la tirette (20) et la barre (40) s'étendent sur toute la largeur de la table, la tirette (20) étant installée dans une rainure (16) ménagée le long de la surface supérieure d'une traverse (14) de la table, chaque côté de la barre (40) étant tenu par l'extrémité supérieure d'un bras (41, 42) oblique dont l'extrémité inférieure est fixée, mobile en rotation, aux côtés du châssis de la table, si désiré au travers d'une plaque intermédiaire (10, 12) de support.8. Device according to claim 1, characterized in that the pull tab (20) and the bar (40) extend over the entire width of the table, the pull pull (20) being installed in a groove (16) formed along of the upper surface of a crosspiece (14) of the table, each side of the bar (40) being held by the upper end of an oblique arm (41, 42) whose lower end is fixed, movable in rotation, alongside the table frame, if desired through an intermediate support plate (10, 12). 9. Dispositif selon la revendication 8, caractérisé en ce que le dispositif de commande et d'actionnement de la barre (40) abaissant celle-ci lorsque l'élément plat est en butée contre un taquet frontal comprend un galet vertical (46) rotatif de lecture monté, d'un côté ou de l'autre, soit sur le bras (41) latéral de la barre soit sur un prolongement du bras au-delà de son point de rotation, ce galet reposant sur une came verticale (48) parallèle au bras et entraînée à partir des moyens d'avance de l'élément plat sur la table, des moyens de rappel agissant vers le haut respectivement soit sur un prolongement du bras (47) au-delà de son point de rotation, soit sur le bras latéral.9. Device according to claim 8, characterized in that the device for controlling and actuating the bar (40) lowering the latter when the flat element is in abutment against a front cleat comprises a vertical roller (46) rotating reading mounted on one side or the other, either on the lateral arm (41) of the bar or on an extension of the arm beyond its point of rotation, this roller resting on a vertical cam (48) parallel to the arm and driven from the means for advancing the flat element on the table, return means acting upwards respectively on an extension of the arm (47) beyond its point of rotation, or on the side arm. 10. Dispositif selon la revendication 9, caractérisé en ce que les bras (41, 42) de la barre (40) sont fixés aux côtés du châssis de la table ou à des plaques intermédiaires (10, 12) de support à la fois mobiles en rotation et en translation parallèlement à la barre, des moyens de réglage comprenant une vis (49) engagée dans le châssis ou dans l'une des plaques (10, 43) permettant d'ajuster la position latérale de la barre (40) par rapport à la table.10. Device according to claim 9, characterized in that the arms (41, 42) of the bar (40) are fixed to the sides of the table frame or to intermediate plates (10, 12) of support both mobile in rotation and in translation parallel to the bar, adjustment means comprising a screw (49) engaged in the chassis or in one of the plates (10, 43) making it possible to adjust the lateral position of the bar (40) by report to the table. 11. Dispositif selon la revendication 8, caractérisé en ce que le dispositif de commande et d'actionnement de la tirette (20) déplaçant celle-ci vers le taquet latéral (70) lors de l'abaissement de la barre comprend un galet rotatif de lecture (26) monté à l'une des extrémités de la tirette (20), si désiré au travers d'un plot d'attache (22) prolongé d'une tige (24), la tirette, ou le plot ou la tige, étant poussé par un moyen de rappel (32) pour maintenir le galet (26) contre une came (30) dont l'action s'effectue dans l'axe de la tirette (20).11. Device according to claim 8, characterized in that the control and actuation device of the pull tab (20) moving the latter towards the lateral cleat (70) when the bar is lowered comprises a rotary roller of reading (26) mounted at one end of the pull tab (20), if desired through an attachment stud (22) extended by a rod (24), the pull tab, or the stud or rod , being pushed by a return means (32) to hold the roller (26) against a cam (30) whose action takes place in the axis of the pull tab (20).
EP95102206A 1994-02-24 1995-02-17 Device for laterally aligning flat articles on a table Expired - Lifetime EP0669274B1 (en)

Applications Claiming Priority (2)

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CH550/94 1994-02-24
CH00550/94A CH689639A5 (en) 1994-02-24 1994-02-24 Device for lateral aligning of flat elements on a table.

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EP0669274A1 true EP0669274A1 (en) 1995-08-30
EP0669274B1 EP0669274B1 (en) 1997-04-09

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EP (1) EP0669274B1 (en)
JP (1) JP2617695B2 (en)
KR (1) KR100190937B1 (en)
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AT (1) ATE151382T1 (en)
AU (1) AU686289B2 (en)
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US1988791A (en) * 1932-11-19 1935-01-22 Harris Seybold Potter Co Sheet-register
US2553758A (en) * 1949-01-19 1951-05-22 Electric Boat Co Printing press side guide
US2836417A (en) * 1952-04-24 1958-05-27 Gericke Erich Flat-bed printing machines
GB868222A (en) * 1958-10-29 1961-05-17 Erich Gericke Printing or duplicating machine

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Publication number Priority date Publication date Assignee Title
WO2016062411A1 (en) * 2014-10-24 2016-04-28 Bobst Mex Sa Device for laterally positioning a plate element
US10005631B2 (en) 2014-10-24 2018-06-26 Bobst Mex Sa Lateral positioning device for a sheet element
US10640314B2 (en) 2016-05-30 2020-05-05 Bobst Mex Sa Detection system for detecting double sheets in a sheet element processing machine, and sheet element processing machine

Also Published As

Publication number Publication date
KR100190937B1 (en) 1999-06-01
ATE151382T1 (en) 1997-04-15
JP2617695B2 (en) 1997-06-04
AU686289B2 (en) 1998-02-05
CN1050815C (en) 2000-03-29
TW270908B (en) 1996-02-21
CN1111559A (en) 1995-11-15
DE69500216T2 (en) 1997-07-17
AU1238995A (en) 1995-08-31
JPH07256591A (en) 1995-10-09
US5626458A (en) 1997-05-06
ES2100751T3 (en) 1997-06-16
CA2143258C (en) 1998-02-10
CA2143258A1 (en) 1995-08-25
BR9500753A (en) 1995-10-24
KR950024874A (en) 1995-09-15
EP0669274B1 (en) 1997-04-09
DE69500216D1 (en) 1997-05-15
CH689639A5 (en) 1999-07-30

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