EP0509861B1 - Fördereinrichtung, insbesondere mit Hochgeschwindigkeitsförderstrecke - Google Patents

Fördereinrichtung, insbesondere mit Hochgeschwindigkeitsförderstrecke Download PDF

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Publication number
EP0509861B1
EP0509861B1 EP92400821A EP92400821A EP0509861B1 EP 0509861 B1 EP0509861 B1 EP 0509861B1 EP 92400821 A EP92400821 A EP 92400821A EP 92400821 A EP92400821 A EP 92400821A EP 0509861 B1 EP0509861 B1 EP 0509861B1
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EP
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Prior art keywords
belt
assembly
main conveyor
decelerator
rollers
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Expired - Lifetime
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EP92400821A
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English (en)
French (fr)
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EP0509861A1 (de
Inventor
Pierre Patin
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CNIM Groupe SA
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B21/00—Kinds or types of escalators or moving walkways
    • B66B21/10—Moving walkways
    • B66B21/12—Moving walkways of variable speed type

Definitions

  • the present invention relates to a transport device, in particular a high speed conveyor, as well as improvements to belt conveyors.
  • high-speed carrier means the carriers commonly known as “accelerated carriers”, which make it possible to drive people, goods or the like, at speeds much higher than the speeds of conventional carriers. , and in particular belt conveyors.
  • accelerated carriers the carriers commonly known as “accelerated carriers”, which make it possible to drive people, goods or the like, at speeds much higher than the speeds of conventional carriers.
  • belt conveyors in particular belt conveyors.
  • transport systems for example for pedestrians, constituted by conveyor belts, continuous, parallel to each other, and of increasing speeds by degrees when passing laterally from a strip on the other; the belts have limited lengths, except the fastest belt which has the length of the conveyor itself.
  • the set of side bands of limited length constitutes, as the case may be, a lateral loader or unloader (accelerator or decelerator); in the case of a pedestrian transporter, the latter must take the initiative to switch from one strip to another, in a necessarily limited time since the lateral strips have much shorter lengths than the transporter itself - even, with all the risks of impact on fixed parts or on other pedestrians than that involves.
  • this system consumes a lot of space.
  • the present invention therefore relates to a transport device, in particular for pedestrians, goods or the like, comprising mounted on a support, a main conveyor intended to drive said pedestrians, goods or the like at high speed relative to the support, an accelerator assembly by wherein the loading of said main transporter is ensured and a decelerator assembly on which said pedestrians, goods or the like are unloaded, characterized in that the area through which said accelerator loads the main transporter and the area through which said transporter unloads on said decelerator , are slightly raised respectively from the loading zone of the main conveyor assembly or the zone of the decelerating element on which the main conveyor discharges.
  • EP-A-0 352 968 (Loderway Pty. Limited) describes a similar device.
  • accelerator and decelerator elements of the device proposed by the invention allow a transition with the main transporter, at constant speed.
  • the tangential speed of the carrier end rollers is equal to the speed of the conveyor belt.
  • Figure l shows the principle of a side loading and unloading conveyor.
  • Figure 2 shows the principle on which the design of an end loader / unloader is based.
  • Figure 3 shows the principle of speed variation in a roller loader, principle known by patent No. 1,560,309 from the same inventor.
  • Figure 3a shows the mounting of the drive rollers between a lower carrier grid and an upper safety grid.
  • Figure 3b shows the principle of driving the rollers by belts and pulleys at the end of the roll.
  • Figure 4 shows in section the connection area between the loader and a continuous conveyor belt made of reinforced elastomer, for example.
  • Figure 5 shows in section the connection area between the continuous strip and the unloader.
  • FIGS. 6a and 6b show, respectively in elevation and in plan, an element of the device for turning over the conveyor belt making it possible to effect a longitudinal pivoting of ⁇ / 2.
  • Two such symmetrical elements with respect to a vertical plane make it possible for the strip to make a half-turn in plan, either by keeping the same face of the strip turned upwards, or by turning it over.
  • Figure 7 shows the same device in perspective.
  • Figures 8a and 8b show, respectively in elevation and in plan, the arrangements that can be adopted to constitute an accelerated moving walkway in two directions.
  • the main conveyor belt l moves for example at a speed of 3 m / s in the direction of arrow 2.
  • the loader system consists of bands 3, 4, 5 which move at respective increasing speeds of 0.75 m / s, l, 50 m / s 2.25 m / s.
  • the unloading system consists of bands 6, 7, 8 which are move at decreasing speeds 2.25 m / s, l, 50 m / s, 0.75 m / s.
  • the whole system is based on the fact that, the speed of transition between two elements, loader and tape, or tape and unloader, having a significant value, it is possible, by ensuring a slight difference in level between two of these elements in the direction of movement, to make these transitions through the object or the pedestrian with a slight and extremely short loss of support, thus avoiding contact with a fixed element.
  • This difference in height is, moreover, substantially that which exists in conventional escalators and moving walks between landing plates and mobile elements (steps, pallets or bands).
  • transition zones are equipped with combing devices which will be described later, taking into account the constitution of the loading and unloading devices which will first of all be recalled.
  • an accelerator element is constituted by a number of rollers such as 13, 14 resting on belts such as 15 driven in the opposite direction to the movement of the conveyor by pulleys 16 and carried by return pulleys 17.
  • the pulleys 16 are integral with the shaft 16a itself driven by a motor, in connection with the speed of the strip such that the various accelerator elements have regularly increasing speeds.
  • the pulleys 17 are idle on the shaft 17a, on which are keyed other pulleys (not shown) which have for the next element the same role as the pulleys 16 for the element considered.
  • Each roller 13 or 14 comprises a stack of discs which, between contiguous rollers, overlap each other with a certain clearance, so as to ensure a reciprocal combing to avoid any introduction of any object between the rollers.
  • These discs are integral with the roller 13 or 14 forming the axis which carries them.
  • These discs have, generally, the same diameter so as to constitute, by the upper tangent plane common to all these discs, a bearing surface for objects or the feet of passengers, their diameter being sufficiently small (of around 30 mm) so that the whole is felt like a grid with small meshes.
  • the discs 13b, 14a, 14c have the same diameter.
  • the discs 13a, 14b by which the rollers rest on the belts 15 have diameters which change with their position relative to the shaft 16a.
  • the carrier disc at the right of this tree will have the same diameter as 13b, 14a or 14c, then the diameters will decrease slightly; thus, the disc 13a will be a little smaller than 13b or 14a and 14b a little smaller than 13a.
  • These two discs 13a and 14b being driven by the same belt 15, the speed of rotation of the roller 14 will be a little greater than that of the roller 13. This is achieved, by slightly varying the diameter of the rollers, for example by 10% between the input and output of an accelerator element, a speed variation of 10%.
  • the belts 15 can be supported between the axes 16a and 17a by rollers of large diameter, to avoid uncomfortable bending of the belts.
  • the rollers are simply positioned by ball or needle bearings which are not load-bearing, the rollers being carried only by the belts.
  • the clearances between rollers are such that the horizontal arrows due to the inertial forces (acceleration and deceleration also determined for this purpose) do not cause friction between rollers.
  • the floor consists of two layers of superposed rollers: these are the rollers of the lower layer which carry out the speed variation and rest on these belts which have the same direction of movement as the main strip.
  • the rollers of the upper layer are then all identical but the nesting of combing recommended above was not provided for in said patent.
  • This two-person arrangement layers of rollers could be retained in case the fatigue of the upper rollers appears too high. It could also be retained by constituting each acceleration element of rollers all turning at the same speed, but of slightly increasing diameter from the entry to the exit of the accelerating element (and vice versa in the decelerator).
  • These rollers could also be replaced by a certain number of bearings or rollers carried by the frame.
  • rollers are embedded in a safety grid which prevents the introduction of any object between the rollers.
  • the rollers are placed between an upper safety grid and a lower carrier grid, and are driven by pulleys mounted freewheeling at the end of the roller, these pulleys having, in the same accelerator or decelerator element, slightly variable diameters, and being driven by one or preferably two belts.
  • Figure 3a shows a longitudinal section of an accelerator element; the rollers rest by their bottoms of grooves or intervals between ribs 13i, 14i, on the lower carrier grid P, and are covered with a safety grid S such that the ribs of the rollers protrude from its surface only by a height of around 2 mm.
  • This provision also has the role of preventing the phenomena of instability of rotation of the rollers.
  • Figure 3b shows the drive mode of an accelerator element comprising 8 rollers driven, one in two by the belt 15a, the next by the belt 15b, the latter two being themselves driven by the drive pulley 17c, the mean plane of the belt 15b and the pulleys which it drives being shifted towards the rear relative to that of the belt 15a.
  • the end-piece 13c of a roller 13 carries a pulley 13p which drives the roller by means of the needle freewheel 131, this freewheel having the role of avoiding transmitting forces between rollers via people or objects transported.
  • the belt 15a is turned over on the roller 14g carried by the end piece 14e of the roller 14 by the needle bearing 14r and which rotates in the opposite direction to the roller which carries it.
  • the belt 15a thus drives four rollers by the pulleys such as 13p, the diameters of which vary from one end to the other of the acceleration element. The same is true of the belt 15b.
  • Figure 4 shows in section the end ll of the charger.
  • the conveyor belt l is carried by an 18th drum which can be driven.
  • This strip has ribs 19a on which may be supported auxiliary strips 20 driven by contact with the strip l, and between these ribs, grooves 19b which allow combing and in which roll bearings 21a and 22a and 23a carried respectively by the transverse shafts 21, 22 and 23.
  • the comb 24 consists of two transverse elements 25 and 26 carrying partitions 27a, 27b, interposed with respect to the teeth 28 of the comb. These partitions maintain a constant and precise spacing between the axes 21, 22 and 23 which carry the comb and are provided with bearings, respectively 21a, 22a, 23a rolling in the grooves 19b of the strip l.
  • the bearings 22a and 23a carry in the "centerless" position the roller 29 whose peripheral speed is therefore equal to the speed of the strip.
  • An axis 31 carries bearings 31a separated by spacers 31b which rest on the bearings 23a. As a result, the axis 31 rotates faster than the roller and tends by friction to drive the bearings 31a which, being proficient, do not intervene in the movement of the object carried which is driven by the neighboring rollers 29 and 32.
  • rollers 32, 33 carried by the auxiliary strip 20 have an identical direction of rotation and a tangential speed.
  • the contact points between rotating elements are reinforced and the directions of rotation given by arrows.
  • the hatched elements are fixed.
  • the doubly hatched trees are rotating.
  • the parabolas P1, P2 representing the trajectories of an object passing over the bearings 29a at respective speeds of 3 m / s, 2 m / s, we see that in normal service, only an object strongly pressed against the ground will risk having contact with the upper, very sloping surface of the comb 24, a surface which it will also approach with an initial speed equal to that of the strip . There is therefore no risk of blocking.
  • Figure 5 shows in section the end 12 of the unloader.
  • the conveyor belt l is driven by a motor drum 18s.
  • Auxiliary bands 34 carried by axle bearings 35 are driven by the ribs of the band 1.
  • the comb 36 comprises two transverse elements 37 and 38 connected by partitions 39a which extend the combing teeth 40 and 39b which are inserted between the teeth. These partitions ensure the relative positioning of the axis 41, bearing the bearings 41a, of the axis 42, carrying the bearings 42a, and of the axis 43, carrying the bearings 43a.
  • the rollers 44 and 46 are driven by the bearings 43a.
  • the assembly 45, 45a, 45b has a role similar to the assembly 31, 31a, 31b of the charger.
  • the position of the dishes P1 (3 m / s) and P2 (2 m / s) shows that in normal service there is no contact in this area. It is only during a slowdown for stopping that such contacts can take place, but the speeds then being low and the transporter being empty in most cases, the risks of incidents are then negligible.
  • the combs could be constituted simply by an extension of the carrier grids P and of security S ( Figure 3a).
  • the strip l resting on a drum with a horizontal axis 46 comes to start its U-turn on another drum 47 whose axis 48 is perpendicular to a plane tangent to the drum 46.
  • the vertical plane of symmetry of the strip l the trace of which in FIG. 6b is the straight line 49, is tangent to the drum 47.
  • the strip resting on these two drums whose axes are orthogonal in space takes a twisted shape called a wing mill, well known when using belts.
  • the only non-deformed longitudinal fiber of the strip is precisely that which projects, in plan as in elevation on the right 49, intersection of the respective planes of symmetry of the two drums perpendicular to their respective axes of rotation.
  • All the other longitudinal fibers of the strip are deformed and elongated as a function of their distance from the fiber 49, the most deformed being the fibers 50 and 51 from the edges of the strip; experience proves that the deformation is projected, in elevation as in plan, in the form of a sinusoidal curve.
  • the strip arrives on a horizontal cylindrical drum 46 s1 and comes to start its U-turn on the convex drum 47 s1 with a vertical axis.
  • the tension of the belt being supplied by a drum of vertical return 551, cylindrical or convex, pushed along arrow 561 by a spring or a jack, the strip is then wound on a convex drum 47e, and forms the starting strip after passing over the counter drum 54e, and the drum 46th.
  • the vertical axes of the curved drums 47 are slightly offset by 3/4 of the curved relative to the axis of the strip.
  • the end 2 is constituted in the same way. At each end are arranged, above the belt U-turn device, the accelerators 91 and 92 and the decelerators 101 and 102.
  • the turning device described can be used in conventional conveyors. not accelerated. In such a case, this device could obviously take simpler forms (for example without counter drum) which it is not necessary to describe in more detail.

Landscapes

  • Escalators And Moving Walkways (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Intermediate Stations On Conveyors (AREA)
  • Control Of Conveyors (AREA)
  • Belt Conveyors (AREA)

Claims (15)

  1. Fördereinrichtung, insbesondere für Fussgänger, Waren oder dergleichen, bestehend aus einem auf einer Abstützung montierten Hauptförderer (1) zum Mitnehmen dieser Fussgänger, Waren oder dergleichen mit einer erhöhten Geschwindigkeit gegenüber dieser Abstützung, einem die Beladung dieses Hauptförderers (1) gewährleistenden Beschleunigungsteil (9) und einem diese Fussgänger, Waren oder dergleichen aufnehmenden Verzögerungsteil (10), dadurch gekennzeichnet, dass der Abschnitt (11), bei welchem dieser Hauptförderer (1) durch dieses Beschleunigungsteil (9) beladen wird, und der Abschnitt (12), bei welchem dieser Förderer (1) sich auf diesem Verzögerungsteil entlädt, gegenüber der Beladungstrecke des gesamten Hauptförderers (1) bzw. der Strecke des Verzögerungsteils (10), auf welcher sich der Hauptförderer (1) entlädt, leicht überhöht angeordnet sind.
  2. Fördereinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Höhenunterschied (e) zwischen dem gesamten Beschleunigungsteil (9) und dem Hauptförderer (1) bzw. der Höhenunterschied (e) zwischen dem Hauptförderer (1) und dem gesamten Verzögerungsteil (10) 2 bis 3 Zentimeter beträgt.
  3. Fördereinrichtung nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie ein zwischen dem Beschleunigungsteil (9) und dem Hauptförderer (1) bzw. zwischen dem Hauptförderer (1) und dem Verzögerungsteil (10) angeordnetes Übergangsteil (24, 36) umfasst, wobei dieses Übergangsteil (24, 36) für diese Fussgänger, Waren oder dergleichen eine Auflagefläche aufweist, welche diesen Hauptförderer (1) mit diesem Beschleunigungsteil (9) bzw. diesem Verzögerungsteil (10) in einer im wesentlichen nichtdiskontinuierlichen Weise verbindet.
  4. Fördereinrichtung nach Anspruch 3, dadurch gekennzeichnet, dass dieser Hauptförderer ein Bandförderer (1) ist, der über mindestens zwei Trommeln (18s, 18e) gelagert ist, die um zur Abstützung feststehende Achsen drehbar sind, wobei ein Übergangsteil (24, 36) mindestens teilweise auf dem Förderband (1) zur Auflage kommt, und wobei der Kontakt zwischen diesem Förderband (1) und dem Übergangsteil (24, 36) tangential an Lagern (21a, 22a, 23a, 41a, 42a, 43a) hergestellt wird, die sich um gegenüber dem Übergangsteil (24, 36) feststehende Achsen (21, 22, 23, 41, 42, 43) drehen, und sich diese Lager (21a, 22a, 23a, 41a, 42a, 43a) auf diesem Band (1) bei dessen Bewegung abwälzen.
  5. Fördereinrichtung nach Anspruch 4, dadurch gekennzeichnet, dass das Band (1) des Hauptförderers ein längsgeripptes (19) Band ist, wobei ein Übergangsteil (24, 36) kammartig ausgebildete, zwischen diesen Rippen angeordnete Zähne (28, 40) zur Positionierung dieses Übergangsteils (24, 36) gegenüber diesem Band (1) und zur Gewährleistung der Transfersicherheit aufweist.
  6. Fördereinrichtung nach irgendeinem der Ansprüche 4 oder 5, dadurch gekennzeichnet, dass ein Übergangsteil Trennwände (27, 39) aufweist, welche die Kammzähne verlängern oder zwischen diesen angeordnet sind und über mindestens zwei Traversen (25, 26; 37, 38) miteinander verbunden sind, wobei diese Trennwände (27, 39) die Achsen (22, 23; 41) der mit dem Band (1) des Hauptförderers in Kontakt stehenden obengenannten Lager (22a, 23a, 41a) abstützen.
  7. Fördereinrichtung nach irgendeinem der Ansprüche 1 à 6, dadurch gekennzeichnet, dass ein Beschleunigungsteil (9) bzw. ein Verzögerungsteil (10) vom Rollentyp ist (sind), wobei die Rollen (13, 14) drehbeweglich mittels Riemen (15) angetrieben werden und deren Durchmesser zur Gewährleistung einer zunehmenden Beschleunigung bzw. Verzögerung der Fussgänger, Waren oder dergleichen von einer Rolle zur anderen variieren.
  8. Fördereinrichtung nach den kombinierten Ansprüchen 4 und 7, dadurch gekennzeichnet, dass die Rollen (13, 14) des Beschleunigungsteils (9) bzw. des Verzögerungsteils (10) über diese Riemen (15) hinaus und beim Hauptförderer durch Übergangsrollen (29, 32; 44, 46) verlängert sind, die mit den ihnen zugeordneten Kontaktlagern (22, 23, 41) durch Reibung drehbeweglich angetrieben werden.
  9. Fördereinrichtung nach Anspruch 8, dadurch gekennzeichnet, dass eine ein Beschleunigungsteil (9) bzw. Verzögerungsteil (10) bei einer Übergangsstrecke mit dem Hauptförderer (1) verlängernde Übergangsrolle (31-31a-31b, 45-45a-45b) aus Lagern besteht, die drehbeweglich auf einer Achse des entsprechenden Übergangsteils (24, 36) montiert sind.
  10. Fördereinrichtung nach den kombinierten Ansprüchen 3 und 7, dadurch gekennzeichnet, dass ein Übergangsteil (24, 36) sich auf einer ihm zugeordneten Antriebstrommel (18e, 18s) des Beschleunigungsteils (9) bzw. Verzögerungsteils (10) abwälzend montiert ist.
  11. Fördereinrichtung nach den kombinierten Ansprüchen 3 und 7, dadurch gekennzeichnet, dass die Umlenk- bzw. Antriebstrommeln einerseits (30) der Riemen (20) des Beschleunigungsteils (9) bzw. der Lager (43a) des Verzögerungsteils (10) und anderseits (18e, 18s) des Hauptförderers (1) im wesentlichen nebeneinander angeordnet sind, wobei diese Riemen (20) und dieses Förderband (1) lokal mindestens teilweise tangieren.
  12. Fördereinrichtung nach irgendeinem der Ansprüche 7 bis 11, dadurch gekennzeichnet, dass eine Rolle (13, 14) eines Beschleunigungsteils (9) bzw. eines Verzögerungsteils (10) eine als Achse ausgebildete Welle aufweist, welche über ihre Länge abwechselnd verteilt Scheiben (13b; 14a, 14c) zum Transport der Fussgänger, Waren oder dergleichen und Scheiben (13a; 14b) zum Antrieb der Rolle (13, 14) durch Kontakt und Reibung mit den Riemen (15) trägt, wobei die Scheiben (13a, 13b; 14b, 14e) von zwei aufeinander folgenden Rollen (13, 14) sich kammartig ineinander verschachteln, und wobei sich der Durchmesser der Antriebsscheiben (13a, 14b) mehrerer aufeinanderfolgenden Rollen bei einem und demselben Riemen fortlaufend ändert, sodass die Rotationsgeschwindigkeiten von mehrerer aufeinanderfolgender Rollen (13, 14) und die tangentialen Geschwindigkeiten von deren Tragscheiben (13b; 14a, 14c) sich zwecks Erzielung der gewünschten Beschleunigung bzw. Verzögerung fortlaufend ändern, wobei die Tragscheiben (13b, 14a, 14c) mehrerer aufeinanderfolgender Rollen (13, 14) eines Beschleunigungsteils (9) bzw. eines Verzögerungsteils (10) alle denselben Durchmesser aufweisen.
  13. Fördereinrichtung nach irgeneinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass dem Förderband (1) ebenfalls Wendetrommeln (47) zugeordnet sind, deren Achse im wesentlichen senkrecht zu den Trommeln (46) verläuft, die das Band in dem Abschnitt zur Mitnahme der Fussgänger, Waren oder dergleichen abstützen, wobei diese Wendetrommeln (47) den Förderband-Rücklauf seitlich zu seiner Mitnahmestrecke gewährleisten, und wobei das Förderband (1) beim Rücklauf ebenfalls als Transportband zum Einsatz kommt und die Einrichtung eine Vorrichtung mit doppelter Antriebsrichtung ist.
  14. Fördereinrichtung nach Anspruch 13, dadurch gekennzeichnet, dass eine Wendetommel (47) bzw. eine Umlenktrommel (54, 54, 55a) auf einer Wendetommel in ihrem Mittelteil bauchig geformt ist.
  15. Fördereinrichtung nach irgendeinem der Ansprüche 13 oder 14, dadurch gekennzeichnet, dass eine Gegentrommel zur Spannungseinstellung (54) dem Band entgegengesetzt gerippt ist, um jegliche Seitenverlagerung des Förderbandes zu verhindern.
EP92400821A 1991-04-12 1992-03-25 Fördereinrichtung, insbesondere mit Hochgeschwindigkeitsförderstrecke Expired - Lifetime EP0509861B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9104528 1991-04-12
FR9104528A FR2675135B1 (fr) 1991-04-12 1991-04-12 Dispositif de transport, notamment a element transporteur a vitesse elevee.

Publications (2)

Publication Number Publication Date
EP0509861A1 EP0509861A1 (de) 1992-10-21
EP0509861B1 true EP0509861B1 (de) 1995-01-18

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EP92400821A Expired - Lifetime EP0509861B1 (de) 1991-04-12 1992-03-25 Fördereinrichtung, insbesondere mit Hochgeschwindigkeitsförderstrecke

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Country Link
US (1) US5234095A (de)
EP (1) EP0509861B1 (de)
JP (1) JP3308298B2 (de)
AT (1) ATE117273T1 (de)
CA (1) CA2064626C (de)
DE (1) DE69201211T2 (de)
ES (1) ES2068010T3 (de)
FR (1) FR2675135B1 (de)

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JPS54113174A (en) * 1978-02-24 1979-09-04 Nissan Motor Co Ltd Continuous transfer system
FR2431075A1 (fr) * 1978-07-11 1980-02-08 Regie Autonome Transports Chaine a un seul sens de courbure et application a une main courante
US4276976A (en) * 1978-07-20 1981-07-07 The Boeing Company Accelerating and decelerating moving walkway with minimal walkway surface irregularities
GB2027404A (en) * 1978-08-12 1980-02-20 Harris Speedwalks Ltd Handrails for dual path moving walkways and escalators
DE68919011T2 (de) * 1988-07-25 1995-02-23 Loderway Pty Ltd Ein beweglicher Gehweg.

Also Published As

Publication number Publication date
FR2675135B1 (fr) 1993-08-06
EP0509861A1 (de) 1992-10-21
US5234095A (en) 1993-08-10
DE69201211D1 (de) 1995-03-02
JP3308298B2 (ja) 2002-07-29
CA2064626A1 (fr) 1992-10-13
ES2068010T3 (es) 1995-04-01
ATE117273T1 (de) 1995-02-15
FR2675135A1 (fr) 1992-10-16
DE69201211T2 (de) 1995-06-29
JPH06156693A (ja) 1994-06-03
CA2064626C (fr) 2005-01-18

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