EP0854110B1 - Scissors lift system for working platforms - Google Patents
Scissors lift system for working platforms Download PDFInfo
- Publication number
- EP0854110B1 EP0854110B1 EP97122979A EP97122979A EP0854110B1 EP 0854110 B1 EP0854110 B1 EP 0854110B1 EP 97122979 A EP97122979 A EP 97122979A EP 97122979 A EP97122979 A EP 97122979A EP 0854110 B1 EP0854110 B1 EP 0854110B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- scissor
- lift
- lift system
- cylinders
- arms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/042—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations actuated by lazy-tongs mechanisms or articulated levers
Definitions
- the invention relates to a scissor lifting system for working platforms with a plurality of identical scissor assemblies arranged one above the other, each consisting of an outer pair of scissor arms and a scissor arm crossing between them, which is articulated at the intersection with the scissor arm pair via an axis lying transversely to the lifting direction.
- the lower ends of the scissor arms of the respective scissors package above are articulated on the upper ends of the scissor arms of the respective lower scissor package and at least one lifting cylinder is present which engages in the area of the scissor package at the bottom with its active axis at an acute angle on the inner scissor arm and is mounted in a frame-mounted opposite position.
- Such a scissor lifting system is known from document US-A-4,930,598.
- this scissor lifting system has a third booster cylinder, which is arranged in the chassis of the associated work platform and acts as an erection aid on one of the lower scissor arms over the initial erection path.
- the invention has for its object to provide the possibility of relieving the lifting cylinder and the lower scissor packs in the case of a scissor lift system for work platforms of the generic type during the initial erection and at low erection heights.
- the auxiliary cylinders also act in this vertical direction, in which far less lifting forces than above the inclined lifting cylinder have to be applied, especially when the erection is slight.
- both the lifting cylinder and the lower scissor arms of the scissor mast can be effectively relieved even with relatively low auxiliary forces, which means that the size of the lifting cylinder can also be reduced.
- the lifting cylinder and the auxiliary cylinders are controlled synchronously, which is particularly important for the first use of force when lifting the scissor-type lifting frame from its lower end position. This means that the new scissor lift can easily be designed with six or more scissor packages arranged one above the other.
- auxiliary cylinders arranged on the upper, outer scissor arms of the scissor packs relieve the load on the scissor packs arranged below, especially when the scissor lift is erected initially or slightly, so that the elastic deformation of the scissor lift can be considerably reduced. This means that low erection heights can be approached precisely with the new scissor lift system.
- the auxiliary cylinders can be designed for a shorter than the maximum stroke between the articulating points on the scissor-type lifting frame, in which case the cylinder tube or the piston rod of the auxiliary cylinder in question is loosely connected to one of its two articulating points in the lifting direction.
- the lifting cylinder can be used to further erect the scissor-type lifting frame, in which case the articulation point at which there is only a loose connection to the auxiliary cylinder is removed from its articulation device. So that this articulation point finds the frictional connection with the auxiliary cylinder in question when lowering, a safety device is provided on or on the auxiliary cylinder itself when the scissor lift is lowered, it automatically engages between the articulation point and the auxiliary cylinder.
- Fig. 1 shows in detail a chassis 1 with a support frame 2 on which a scissor lift 3 is arranged. At the top end, the scissor lift frame carries a work platform 4, which can be moved in height between the lower end position and the upper, upright end position of the scissor lift frame 3.
- the scissor lift 3 consists of identical scissor packages 5 arranged one above the other, each consisting of pairs of scissor arms 6 with external scissor arms 7 and inner scissor arms 8.
- the scissor arms 7 of each pair of scissor arms 6 are congruent to one another in the transverse direction and are just such a distance that the inner scissor arms 8 are arranged between them with sufficient play. This results in a scissor lift 3 so-called triple system, as can be seen in particular in the front view of FIG. 2.
- the lower ends 9 of the outer scissor arms 7 of the scissor arm pairs 6 are each articulated to the upper ends 10 of the inner scissor arms 8, likewise the lower ends 12 of the inner scissor arms 8 are articulated on the upper ends 11 of the outer scissor arms 7.
- the outer scissor arms 7 of the scissor arm pairs 6 and the inner scissor arms 8 of a scissor package 5 are articulated to one another at intersection points 13 by means of an inserted axis or the like.
- the scissor lift 3 is one which is equipped with a total of six scissor packages 5.
- the main drive for erecting and lowering the scissor lift 3 is via a lifting cylinder 14, which is arranged on the chassis 1 or support frame 2 at an articulation point 15 in the transverse direction, centrally under the scissor lift 3 and with its piston rod at a bearing point 16 on the underside of the bottom lying scissor arm 8 attacks.
- the effective axis of the lifting cylinder 14 takes a very acute angle to this lower, inner scissor arm 8, which on the one hand saves overall height, but on the other hand requires increased lifting forces when lifting the scissor mast 3 from the lower end position.
- An auxiliary cylinder 17 is arranged on the support frame 2 in the middle under the scissor-type lifting frame 3 and is suspended there in an oscillating manner at a articulation point 18. With its piston rod attacks the auxiliary cylinder 17 at an upper articulation point 19, which is located on the underside of the inner scissor arm 8 lying at the bottom.
- the direction of action of the auxiliary cylinder 17 lies in the lifting direction of the scissor-type mast 3, that is to say generally in the vertical direction.
- the direction of action of the auxiliary cylinder 17 is thus arranged exactly in the vertical plane in which the crossing points 13 which spread apart from one another during the lifting of the scissor-type lifting frame 3 lie.
- the full force of the auxiliary cylinder 17 acts in the vertical lifting direction.
- the auxiliary cylinder 17 supports the initial stroke of the scissor lift 3 from its lowered position, and since the vertical force component of the lifting cylinder 14 increases with the rising angle of the scissor arms 7, 8, this can alone the further lifting forces up to the upper one from a certain upright height of the scissor lift 3 Apply the end position of the erected scissor mast 3. It is therefore sufficient if the auxiliary cylinder 17 is only effective over the initial stroke of the scissor-type mast 3, so that the overall length of the auxiliary cylinder 17 can be saved.
- the piston rod of the auxiliary cylinder 17 at the articulation point 19 disengages from the scissor arm 8 lying at the bottom, and thus when the scissor lift 3 is lowered, the end of the piston rod of the auxiliary cylinder 17 at the articulation point 19 securely engages again there on the underside of the inner swivel arm 8 a suitable safety device 20, which for an exact Adjustment of the auxiliary cylinder 17 when attacking the articulation point 19 provides.
- auxiliary cylinders 21 which are arranged on the outer sides of the outer scissor arms 7 of the scissor arm pairs 6 concerned.
- These auxiliary cylinders 21 have the same vertical direction of action as the auxiliary cylinder 17, their lower articulation points 24 are at the level of the intersection points 13 of the lower scissor assembly 5, while the upper articulation points 23 of the auxiliary cylinder 21 are located in the area of the intersection locations of the upper scissor assembly 5.
- the piston rods 22 of these auxiliary cylinders 21 also have a safety device 25, so that the loose articulation point 23 can stand out from a certain upright height when it is raised further. When the direction of movement is reversed, it is also ensured here that the articulation point 23 securely comes into engagement with the respective piston rod 22 of the auxiliary cylinder 21 in question.
- the two auxiliary cylinders 21 are arranged mirror-symmetrically to one another at the same height as the scissor lift frame 3, which is not absolutely necessary.
- both the upper auxiliary cylinder 21 and the lower auxiliary cylinder 17 can be arranged offset from the transverse center plane extending in the vertical direction, the only decisive factor is that the articulation points 18 and 19 for the lower auxiliary cylinder 17 and the articulation points 23 and 24 for the upper auxiliary cylinder 21 itself when erecting the scissor lift 3 in the height direction separate from each other.
- the paired, upper auxiliary cylinders 21 can also be provided at the ends of the scissor arms 7, 8, because there are also articulation points with an axis passed through the scissor arm ends, which, with a corresponding extension, extend beyond the outer sides of the outer scissor arms 7 for the Linkage of the auxiliary cylinder 21 can be used.
- auxiliary cylinders 17, 21, as shown in the drawing those cylinders can also be used, the. Join the entire stroke between the two articulation points. Telescopic cylinders are then used for this.
Abstract
Description
Die Erfindung bezieht sich auf ein Scherenhubsystem für Arbeitsbühnen mit einer Mehrzahl gleicher, übereinander angeordneter Scherenpakete, die jeweils aus einem außenliegenden Scherenarmpaar und einem dazwischen kreuzend angeordneten Scherenarm bestehen, der an der Kreuzungsstelle mit dem Scherenarmpaar über eine quer zur Hubrichtung liegende Achse gelenkig verbunden ist, wobei an den Oberenden der Scherenarme des jeweils unteren Scherenpaketes die Unterenden der Scherenarme des jeweils darüberliegenden Scherenpaketes angelenkt sind und zumindest ein Hubzylinder vorhanden ist, der im Bereich des zuunterst liegenden Scherenpaketes mit seiner Wirkachse unter einem spitzen Winkel am inneren Scherenarm angreift und gestellfest gegengelagert ist. Ein solches Scherenhubsystem ist aus dem Dokument US-A-4,930,598 bekannt.The invention relates to a scissor lifting system for working platforms with a plurality of identical scissor assemblies arranged one above the other, each consisting of an outer pair of scissor arms and a scissor arm crossing between them, which is articulated at the intersection with the scissor arm pair via an axis lying transversely to the lifting direction. the lower ends of the scissor arms of the respective scissors package above are articulated on the upper ends of the scissor arms of the respective lower scissor package and at least one lifting cylinder is present which engages in the area of the scissor package at the bottom with its active axis at an acute angle on the inner scissor arm and is mounted in a frame-mounted opposite position. Such a scissor lifting system is known from document US-A-4,930,598.
Bei Scherenhubsystemen dieser Art strebt man immer größere Arbeitshöhen an, womit entsprechend die Anzahl der übereinander angeordneten Scherenpakete erhöht werden muß. Mit der Anzahl der Scherenpakete wachsen aber auch die Kräfte an, die vom Hubzylinder aufgebracht werden müssen, um das Scherengerüst aufzurichten. Weiter hat dies aufgrund des sich erhöhenden Gewichtes des Scherengerüstes zur Folge, daß beim Anheben in der abgesenkten Lage eine synchrone Aufrichtung der einzelnen Scherenpakete nicht vonstatten geht. Vielmehr deformieren sich zunächst die unteren Scherenpakete und in erster Linie das zuunterst liegende Scherenpaket, weil bei der üblichen Ausführung in Stahl sich deren Scherenarme elastisch verbiegen. Da mit zunehmendem Aufrichten die Hubkräfte kleiner werden, die von einem Scherenpaket zum nächst oberen übertragen werden, findet in gewissen Grenzen eine federelastische Aufrichtung des Scherengerüstes statt, die sich einer exakten Kontrolle entzieht, weswegen im unteren Aufrichtbereich bestimmte Arbeitshöhen nicht genau angefahren werden können. Vor allem macht sich das bei solchen Scherenhubgerüsten störend bemerkbar, die mehr als vier Scherenpakete haben.With scissor lifting systems of this type, increasing working heights are being striven for, which means that the number of scissor packs arranged one above the other must be increased accordingly. With the number of scissors packages, however, the forces that have to be applied by the lifting cylinder to erect the scissors scaffold also increase. Furthermore, due to the increasing weight of the scissors-like structure, this means that when the scraper is raised in the lowered position, a synchronous erection of the individual scissor packs does not take place. Rather, the lower scissor packs, and primarily the scissor pack at the bottom, deform first, because with the usual design in steel, their scissor arms are deformed bend elastically. Since the lifting forces that are transferred from one scissor package to the next upper one become smaller with increasing erection, there is a certain amount of spring-elastic erection of the scissor frame that cannot be precisely controlled, which is why certain working heights cannot be reached precisely in the lower erection area. This is particularly noticeable in the case of scissor lifts that have more than four scissor packages.
Man ist deshalb bei Scherengerüsten für Arbeitsbühnen, bei denen auch innenliegend Scherenarmpaare vorhanden sind, deren Scherenarme in Abstand voneinander angeordnet sind, schon dazu übergegangen, zwischen den innenliegenden Scherenarmen oberhalb des unteren Hubzylinders einen weiteren Hubzylinder vorzusehen. Bei einem Scherenhubsystem der gattungsbildenden Art ist dies jedoch nicht möglich, denn hierbei handelt es sich um ein sogenanntes Dreiersystem, bei dem ein Scherenpaket aus einem außenliegenden Scherenarmpaar und einem kreuzend dazwischenliegenden, einzelnen Scherenarm besteht, wobei diese drei Scherenarme in der Projektion der Hubrichtung gesehen dicht beieinander angeordnet sind. Folglich gibt es einen nutzbaren Zwischenraum zwischen den außenliegenden Scherenarmen bei einem solchen Dreiersystem nicht, und es kann hier lediglich unter dem zuunterst angeordneten, einzelnen Scherenarm der für die Aufrichtung des Scherengerüstes notwendige Hubzylinder angebracht werden. Dieser Hubzylinder schließt mit dem Scherenarm, an dem er angreift, einen sehr spitzen Winkel aus Raumgründen ein, der in der abgesenkten Endlage des Scherenhubgerüstes nur wenige Grad beträgt, wodurch für die anfängliche Hubbewegung die hohen Aufrichtkräfte bedingt sind.Therefore, in scissor stands for work platforms, in which there are also scissor arm pairs on the inside, the scissor arms of which are arranged at a distance from one another, it has already started to provide a further lifting cylinder between the scissor arms located above the lower lifting cylinder. However, this is not possible with a scissor lifting system of the generic type, because this is a so-called triple system, in which a scissor package consists of an outer pair of scissor arms and a single scissor arm crossing between them, these three scissor arms being sealed in the projection of the lifting direction are arranged together. Consequently, there is no usable space between the outer scissor arms in such a triple system, and it is only possible to attach the lifting cylinder necessary for the erection of the scissor frame under the individual scissor arm arranged at the bottom. This lifting cylinder encloses with the scissor arm, on which it engages, a very acute angle for space reasons, which is only a few degrees in the lowered end position of the scissor mast, which means for the initial The high upright forces are due to the lifting movement.
Aus dem Dokument US-A-3, 596, 735 ist ein gattungsfremdes Scherenhubsystem bekannt, bei dem für das Aufrichten über den gesamten Hub zwei Hubzylinder vorhanden sind. Darüber hinaus weist dieses Scherenhubsystem einen dritten Booster-Zylinder auf, der im Fahrgestell der zugehörigen Arbeitsbühne angeordnet ist und als Aufrichthilfe an einem der unteren Scherenarme über den anfänglichen Aufrichtweg hinweg angreift.From document US-A-3, 596, 735 a non-generic scissor lifting system is known, in which two lifting cylinders are available for the erection over the entire stroke. In addition, this scissor lifting system has a third booster cylinder, which is arranged in the chassis of the associated work platform and acts as an erection aid on one of the lower scissor arms over the initial erection path.
Der Erfindung liegt die Aufgabe zugrunde, bei einem Scherenhubsystem für Arbeitsbühnen der gattungsgemäßen Art die Möglichkeit zu schaffen, beim anfänglichen Aufrichten und bei geringen Aufrichthöhen den Hubzylinder und die unteren Scherenpakete zu entlasten.The invention has for its object to provide the possibility of relieving the lifting cylinder and the lower scissor packs in the case of a scissor lift system for work platforms of the generic type during the initial erection and at low erection heights.
Diese Aufgabe wird bei bei einem Scherenhubsystem für Arbeitsbühnen der gattungsbildenden Art nach der Erfindung dadurch gelöst, daß zwei Hilfszylinder an den Außenseiten der außenliegenden Scherenarmpaare zweier Scherenarmpakete in der Hubrichtung zwischen von einander beim Hub spreizenden Anlenkstellen angeordnet sind.This object is achieved in a scissor lifting system for work platforms of the generic type according to the invention in that two auxiliary cylinders are arranged on the outer sides of the outer pairs of scissor arms of two scissor arm packages in the stroke direction between articulation points spreading from one another during the stroke.
Für die Erfindung ist wesentlich, daß bei üblicher vertikaler Aufrichtung des Scherenhubgerüstes die Hilfszylinder ebenfalls in dieser Vertikalrichtung wirken, in der vor allem bei geringer Aufrichtung weit weniger Hubkräfte als über den schrägliegenden Hubzylinder aufgebracht werden müssen. So können schon mit verhältnismäßig geringen Hilfskräften sowohl der Hubzylinder als auch die unteren Scherenarme des Scherenhubgerüstes wirksam entlastet werden, womit auch die Baugröße des Hubzylinders reduziert werden kann. Es versteht sich, daß der Hubzylinder und die Hilfszylinder synchron angesteuert werden, was gerade auch für den ersten Krafteinsatz beim Anheben des Scherenhubgerüstes aus seiner unteren Endlage heraus wichtig ist. So kann das neue Scherenhubgerüst problemlos mit sechs und mehr übereinander angeordneten Scherenpaketen ausgeführt werden.It is essential for the invention that, in the case of the usual vertical erection of the scissor-type scaffolding, the auxiliary cylinders also act in this vertical direction, in which far less lifting forces than above the inclined lifting cylinder have to be applied, especially when the erection is slight. In this way, both the lifting cylinder and the lower scissor arms of the scissor mast can be effectively relieved even with relatively low auxiliary forces, which means that the size of the lifting cylinder can also be reduced. It goes without saying that the lifting cylinder and the auxiliary cylinders are controlled synchronously, which is particularly important for the first use of force when lifting the scissor-type lifting frame from its lower end position. This means that the new scissor lift can easily be designed with six or more scissor packages arranged one above the other.
Durch die an den oberen, außenliegenden Scherenarmen der Scherenpakete angeordneten Hilfszylinder werden vor allem bei anfänglichem oder geringem Aufrichten des Scherenhubgerüstes die weiter unten angeordneten Scherenpakete entlastet, womit die elastische Deformation des Scherenhubgerüstes erheblich verringert werden kann. Somit lassen sich mit dem neuen Scherenhubsystem geringe Aufrichthöhen exakt anfahren.The auxiliary cylinders arranged on the upper, outer scissor arms of the scissor packs relieve the load on the scissor packs arranged below, especially when the scissor lift is erected initially or slightly, so that the elastic deformation of the scissor lift can be considerably reduced. This means that low erection heights can be approached precisely with the new scissor lift system.
Grundsätzlich ist es nicht notwendig, mittels der Hilfszylinder die Aufrichtung des Scherenhubgerüstes über den gesamten Aufrichtweg zu unterstützen. Denn mit zunehmender Aufrichtung nehmen die vom Hubzylinder aufzubringenden Kräfte ab, der ab einer bestimmten Aufrichthöhe allein in der Lage ist, die Kräfte für die weitere Aufrichtung des Scherenhubgerüstes aufzubringen. Anstelle des Einsatzes von Teleskopzylinder kann man die Hilfszylinder für einen geringeren als den maximalen Hub zwischen den voneinander spreizenden Anlenkstellen am Scherenhubgerüst auslegen, wobei dann das Zylinderrohr oder die Kolbenstange des betreffenden Hilfszylinders mit einer seiner beiden Anlenkstellen in Hubrichtung lose verbunden ist. Ist der maximale Ausfahrweg der Hilfszylinder erreicht, kann über den Hubzylinder die weitere Aufrichtung des Scherenhubgerüstes vorgenommen werden, wobei sich dann diejenige Anlenkstelle, an der lediglich eine lose Verbindung zu dem Hilfszylinder besteht, von dessen Anlenkvorrichtung entfernt. Damit beim Absenken diese Anlenkstelle wieder den Kraftschluß mit dem betreffenden Hilfszylinder findet, ist daran oder an dem Hilfszylinder selbst eine Fangvorrichtung vorgesehen, die beim Absenken des Scherenhubgerüstes selbstätig den Eingriff zwischen der Anlenkstelle und dem Hilfszylinder herstellt.Basically, it is not necessary to support the erection of the scissor lift over the entire erection path by means of the auxiliary cylinders. Because with increasing erection, the forces to be exerted by the lifting cylinder decrease, which from a certain erection height alone is able to exert the forces for the further erection of the scissor lift. Instead of using telescopic cylinders, the auxiliary cylinders can be designed for a shorter than the maximum stroke between the articulating points on the scissor-type lifting frame, in which case the cylinder tube or the piston rod of the auxiliary cylinder in question is loosely connected to one of its two articulating points in the lifting direction. Once the maximum extension path of the auxiliary cylinders has been reached, the lifting cylinder can be used to further erect the scissor-type lifting frame, in which case the articulation point at which there is only a loose connection to the auxiliary cylinder is removed from its articulation device. So that this articulation point finds the frictional connection with the auxiliary cylinder in question when lowering, a safety device is provided on or on the auxiliary cylinder itself when the scissor lift is lowered, it automatically engages between the articulation point and the auxiliary cylinder.
Weitere vorteilhafte Ausgestaltungsmerkmale der Erfindung ergeben sich im übrigen aus den Unteransprüchen.Further advantageous features of the invention emerge from the subclaims.
Die Erfindung wird nachfolgend anhand der Zeichnung an einem Ausführungsbeispiel noch näher erläutert. Dabei zeigen:
- Fig. 1
- die Seitansicht eines eine Arbeitsbühne tragenden Scherenhubsystems und
- Fig. 2
- die Stirnansicht des Scherenhubsystems nach Figur 1.
- Fig. 1
- the side view of a scissor lifting system carrying a working platform and
- Fig. 2
- the front view of the scissor lifting system according to Figure 1.
Fig. 1 zeigt im einzelnen ein Fahrgestell 1 mit einem Traggestell 2, auf dem ein Scherenhubgerüst 3 angeordnet ist. Am Oberende trägt das Scherenhubgerüst eine Arbeitsplattform 4, die zwischen der unteren Endlage und der oberen, aufgerichteten Endlage des Scherenhubgerüstes 3 höhenverfahrbar ist.Fig. 1 shows in detail a chassis 1 with a support frame 2 on which a scissor lift 3 is arranged. At the top end, the scissor lift frame carries a work platform 4, which can be moved in height between the lower end position and the upper, upright end position of the scissor lift frame 3.
Das Scherenhubgerüst 3 besteht aus übereinander angeordneten, gleichen Scherenpaketen 5, die jeweils aus Scherenarmpaaren 6 mit außenliegenden Scherenarmen 7 und aus inneren Scherenarmen 8 bestehen. Die Scherenarme 7 jedes Scherenarmpaars 6 liegen in Querrichtung gesehen deckungsgleich zueinander und haben gerade einen solchen Abstand, daß dazwischen mit ausreichendem Spiel die inneren Scherenarme 8 angeordnet sind. Dies ergibt für das Scherenhubgerüst 3 ein sogenanntes Dreiersystem, wie man insbesondere in der Stirnansicht von Fig. 2 ersieht. Die Unterenden 9 der außenliegenden Scherenarme 7 der Scherenarmpaare 6 sind jeweils gelenkig mit den Oberenden 10 der innenliegenden Scherenarme 8 verbunden, ebenso sind an den Oberenden 11 der außenliegenden Scherenarme 7 dazwischenliegend die Unterenden 12 der inneren Scherenarme 8 angelenkt. Jeweils auf halber Länge sind die außenliegenden Scherenarme 7 der Scherenarmpaare 6 und die innenliegenden Scherenarme 8 eines Scherenpaketes 5 an Kreuzungsstellen 13 mittels einer durchgesteckten Achse oder dergleichen gelenkig miteinander gekuppelt. Wie man unter anderem an der Anzahl dieser Kreuzungsstellen 13 erkennt, handelt es sich bei dem Scherenhubgerüst 3 um ein solches, welches mit insgesamt sechs Scherenpaketen 5 ausgestattet ist.The scissor lift 3 consists of identical scissor packages 5 arranged one above the other, each consisting of pairs of scissor arms 6 with external scissor arms 7 and inner scissor arms 8. The scissor arms 7 of each pair of scissor arms 6 are congruent to one another in the transverse direction and are just such a distance that the inner scissor arms 8 are arranged between them with sufficient play. This results in a scissor lift 3 so-called triple system, as can be seen in particular in the front view of FIG. 2. The lower ends 9 of the outer scissor arms 7 of the scissor arm pairs 6 are each articulated to the upper ends 10 of the inner scissor arms 8, likewise the lower ends 12 of the inner scissor arms 8 are articulated on the upper ends 11 of the outer scissor arms 7. Halfway along the length, the outer scissor arms 7 of the scissor arm pairs 6 and the inner scissor arms 8 of a scissor package 5 are articulated to one another at intersection points 13 by means of an inserted axis or the like. As can be seen, inter alia, from the number of these crossing points 13, the scissor lift 3 is one which is equipped with a total of six scissor packages 5.
Der Hauptantrieb für das Aufrichten und Absenken des Scherenhubgerüstes 3 erfolgt über einen Hubzylinder 14, der am Fahrgestell 1 oder Traggestell 2 an einem Anlenkpunkt 15 in Querrichtung gesehen mittig unter dem Scherenhubgerüst 3 angeordnet ist und mit seiner Kolbenstange an einem Lagerpunkt 16 an der Unterseite des zuunterst liegenden Scherenarms 8 angreift. Die Wirkachse des Hubzylinders 14 nimmt einen sehr spitzen Winkel zu diesem unteren, innenliegenden Scherenarm 8 ein, was einerseits Bauhöhe einspart, aber andererseits erhöhte Hubkräfte beim Anheben des Scherenhubgerüstes 3 aus der unteren Endlage erfordert.The main drive for erecting and lowering the scissor lift 3 is via a lifting cylinder 14, which is arranged on the chassis 1 or support frame 2 at an articulation point 15 in the transverse direction, centrally under the scissor lift 3 and with its piston rod at a bearing point 16 on the underside of the bottom lying scissor arm 8 attacks. The effective axis of the lifting cylinder 14 takes a very acute angle to this lower, inner scissor arm 8, which on the one hand saves overall height, but on the other hand requires increased lifting forces when lifting the scissor mast 3 from the lower end position.
Mittig unter dem Scherenhubgerüst 3 ist am Traggestell 2 ein Hilfszylinder 17 angeordnet, der dort an einer Anlenkstelle 18 pendelnd aufgehängt ist. Mit seiner Kolbenstange greift der Hilfszylinder 17 an einer oberen Anlenkstelle 19 an, die an der Unterseite des zuunterst liegenden, innenliegenden Scherenarms 8 sich befindet. Die Wirkrichtung des Hilfszylinders 17 liegt in der Hubrichtung des Scherenhubgerüstes 3, in der Regel also in der Vertikalrichtung. Damit ist die Wirkrichtung des Hilfszylinders 17 exakt in derjenigen Vertikalebene angeordnet, in der die beim Hub des Scherenhubgerüstes 3 voneinander weg spreizenden Kreuzungsstellen 13 liegen. Anders als der Hubzylinder 14, der nur mit seiner kleineren Kraftkomponente in der unteren Ausgangslage am Scherenhubgerüst 3 angreift, wirkt die volle Kraft des Hilfszylinders 17 in der vertikalen Hubrichtung. Insbesondere unterstützt der Hilfszylinder 17 den Anfangshub des Scherenhubgerüstes 3 aus seiner abgesenkten Lage heraus, und da mit zunehmendem Aufrichtwinkel der Scherenarme 7, 8 die vertikale Kraftkomponente des Hubzylinders 14 zunimmt, kann dieser ab einer bestimmten Aufrichthöhe des Scherenhubgerüstes 3 allein die weiteren Hubkräfte bis zur oberen Endlage des aufgerichteten Scherenhubgerüstes 3 aufbringen. Deshalb genügt es, wenn der Hilfszylinder 17 nur über den anfänglichen Hubweg des Scherenhubgerüstes 3 wirksam ist, womit beim Hilfszylinder 17 Baulänge eingespart werden kann. So kommt ab einer bestimmten Aufrichthöhe die Kolbenstange des Hilfszylinders 17 an der Anlenkstelle 19 außer Eingriff mit dem zuunterst liegenden Scherenarm 8, und damit beim Absenken des Scherenhubgerüstes 3 das Ende der Kolbenstange des Hilfszylinders 17 an der Anlenkstelle 19 wieder sicher in Eingriff kommt, findet sich dort an der Unterseite des inneren Schwenkarms 8 eine geeignete Fangvorrichtung 20, die für eine exakte Justage des Hilfszylinders 17 bei Angriff an der Anlenkstelle 19 sorgt.An auxiliary cylinder 17 is arranged on the support frame 2 in the middle under the scissor-type lifting frame 3 and is suspended there in an oscillating manner at a articulation point 18. With its piston rod attacks the auxiliary cylinder 17 at an upper articulation point 19, which is located on the underside of the inner scissor arm 8 lying at the bottom. The direction of action of the auxiliary cylinder 17 lies in the lifting direction of the scissor-type mast 3, that is to say generally in the vertical direction. The direction of action of the auxiliary cylinder 17 is thus arranged exactly in the vertical plane in which the crossing points 13 which spread apart from one another during the lifting of the scissor-type lifting frame 3 lie. Unlike the lifting cylinder 14, which only acts with its smaller force component in the lower starting position on the scissor mast 3, the full force of the auxiliary cylinder 17 acts in the vertical lifting direction. In particular, the auxiliary cylinder 17 supports the initial stroke of the scissor lift 3 from its lowered position, and since the vertical force component of the lifting cylinder 14 increases with the rising angle of the scissor arms 7, 8, this can alone the further lifting forces up to the upper one from a certain upright height of the scissor lift 3 Apply the end position of the erected scissor mast 3. It is therefore sufficient if the auxiliary cylinder 17 is only effective over the initial stroke of the scissor-type mast 3, so that the overall length of the auxiliary cylinder 17 can be saved. Thus, from a certain uprighting height, the piston rod of the auxiliary cylinder 17 at the articulation point 19 disengages from the scissor arm 8 lying at the bottom, and thus when the scissor lift 3 is lowered, the end of the piston rod of the auxiliary cylinder 17 at the articulation point 19 securely engages again there on the underside of the inner swivel arm 8 a suitable safety device 20, which for an exact Adjustment of the auxiliary cylinder 17 when attacking the articulation point 19 provides.
Weiter oben am Scherenhubgerüst 3 und zwar zwischen dem zweitoberen und drittoberen Scherenpaket 5 finden sich zwei weitere Hilfszylinder 21, die an den Außenseiten der außenliegenden Scherenarme 7 der betreffenden Scherenarmpaare 6 angeordnet sind. Diese Hilfszylinder 21 haben die gleiche vertikale Wirkrichtung wie der Hilfszylinder 17, ihre unteren Anlenkstellen 24 liegen in Höhe der Kreuzungsstellen 13 des unteren Scherenpaketes 5, während die oberen Anlenkstellen 23 der Hilfszylinder 21 im Bereich der Kreuzungsstellen des oberen Scherenpaketes 5 sich befinden. Die Kolbenstangen 22 dieser Hilfszylinder 21 haben ebenfalls eine Fangvorrichtung 25, damit die lose Anlenkstelle 23 sich hiervon ab einer bestimmten Aufrichthöhe beim weiteren Anheben abheben kann. Bei umgekehrter Bewegungsrichtung ist damit hier ebenfalls sichergestellt, daß die Anlenkstelle 23 wieder sicher in Eingriff mit der jeweiligen Kolbenstange 22 des betreffenden Hilfszylinders 21 kommt.Further up on the scissor lift 3, namely between the second upper and third upper scissor package 5, there are two further auxiliary cylinders 21 which are arranged on the outer sides of the outer scissor arms 7 of the scissor arm pairs 6 concerned. These auxiliary cylinders 21 have the same vertical direction of action as the auxiliary cylinder 17, their lower articulation points 24 are at the level of the intersection points 13 of the lower scissor assembly 5, while the upper articulation points 23 of the auxiliary cylinder 21 are located in the area of the intersection locations of the upper scissor assembly 5. The piston rods 22 of these auxiliary cylinders 21 also have a safety device 25, so that the loose articulation point 23 can stand out from a certain upright height when it is raised further. When the direction of movement is reversed, it is also ensured here that the articulation point 23 securely comes into engagement with the respective piston rod 22 of the auxiliary cylinder 21 in question.
Die beiden Hilfszylinder 21 sind beim Ausführungsbeispiel spiegelsymmetrisch zueinander auf gleicher Höhe des Scherenhubgerüstes 3 angeordnet, was nicht unbedingt erforderlich ist. Grundsätzlich können sowohl die oberen Hilfszylinder 21 als auch der untere Hilfszylinder 17 aus der in Höhenrichtung verlaufenden Quermittenebene heraus versetzt angeordnet werden, entscheidend ist lediglich, daß die Anlenkstellen 18 und 19 für den unteren Hilfszylinder 17 und die Anlenkstellen 23 und 24 für die oberen Hilfszylinder 21 sich beim Aufrichten des Scherenhubgerüstes 3 in Höhenrichtung voneinander entfernen. So können insbesondere die paarweise angeordneten, oberen Hilfszylinder 21 auch an den Enden der Scherenarme 7, 8 vorgesehen werden, weil sich auch dort Gelenkstellen mit einer durch die Scherenarmenden hindurchgeführten Achse befinden, die bei entsprechender Verlängerung über die Außenseiten der äußeren Scherenarme 7 hinaus für die Anlenkung der Hilfszylinder 21 genutzt werden können.In the exemplary embodiment, the two auxiliary cylinders 21 are arranged mirror-symmetrically to one another at the same height as the scissor lift frame 3, which is not absolutely necessary. In principle, both the upper auxiliary cylinder 21 and the lower auxiliary cylinder 17 can be arranged offset from the transverse center plane extending in the vertical direction, the only decisive factor is that the articulation points 18 and 19 for the lower auxiliary cylinder 17 and the articulation points 23 and 24 for the upper auxiliary cylinder 21 itself when erecting the scissor lift 3 in the height direction separate from each other. In particular, the paired, upper auxiliary cylinders 21 can also be provided at the ends of the scissor arms 7, 8, because there are also articulation points with an axis passed through the scissor arm ends, which, with a corresponding extension, extend beyond the outer sides of the outer scissor arms 7 for the Linkage of the auxiliary cylinder 21 can be used.
Anstelle der Hilfszylinder 17, 21, wie sie in der Zeichnung dargestellt sind, können auch solche Zylinder verwendet werden, die den. gesamten Hub zwischen den beidendigen Anlenkstellen mitmachen. Hierfür kommen dann Teleskopzylinder zum Einsatz.Instead of the auxiliary cylinders 17, 21, as shown in the drawing, those cylinders can also be used, the. Join the entire stroke between the two articulation points. Telescopic cylinders are then used for this.
Claims (9)
- Scissor lift system for working platforms with a number of identical scissor units (5) mounted one above the other and each comprising an outer scissor arm pair (6) and a scissor arm (8) mounted to criss cross inbetween wherein this scissor arm is connected for articulated movement at the intersection point (13) to the scissor arm pair through an axis lying transversely to the lift direction, wherein the lower ends (9, 12) of the scissor army (7, 8) of the scissor unit (5) above are connected to the upper ends (10, 11) of the scissor arms (7, 8) of each lower scissor unit (5) and at least one lift cylinder (14) is provided which engages on the inner scissor arm (8) in the region of the lowest scissor unit (5) by its active axis at an acute angle and is counter-supported fixed on the frame,
characterised in that
two secondary cylinders (21) are mounted on the outsides of the outer scissor arm pair (6) of two scissor arm units (5) in the lift direction between two connection points (23, 24) which spread apart from each other during lifting. - Scissor lift system according to claim 1,
characterised in that
the two lift cylinders (17, 21) are mounted in the transverse plane running in the vertical direction or close to this transverse plane in which the intersection points (13) of the scissor arms (76, 8) are located. - Scissor lift system according to claim 1 or 2,
characterised in that
the secondary cylinders (21) are mounted on the scissor arm pairs (6) of two adjoining scissor units (5). - Scissor lift system according to one of claims 1 to 3,
characterised in that
the secondary cylinders (21) are mounted on the scissor arm pairs (6) of the two topmost scissor units (5). - Scissor lift system according to one of claims 1 to 4,
characterised in that
the secondary cylinders (21) are mounted at least in one of those transverse planes running in the vertical direction or close to at least one of these transverse planes which pass through the articulated joints at the ends of the scissor arms (7, 8). - Scissor lift system according to one of claims 1 to 5,
characterised in that
the secondary cylinders are mounted suspended from the relevant scissor arm pair (6) in the region of the outlet end for the piston rod (22). - Scissor lift system according to one of claims 1 to 6,
characterised in that
the secondary cylinders (21) are designed for a less than maximum lift between the spreading connecting points (23, 24) and are loosely connected to one of the two connecting points (19, 23) in the lift direction. - Scissor lift system according to claim 7,
characterised in that
a catch device (25) for securing the connection during the lowering process is mounted on the loose connecting point (23) on the relevant scissor arm pair (6) and/or the relevant secondary cylinder (21). - Scissor lift system according to one of claims 1 to 8,
characterised in that
the secondary cylinders (21) are telescopic cylinders.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29700496U | 1997-01-14 | ||
| DE29700496U DE29700496U1 (en) | 1997-01-14 | 1997-01-14 | Scissor lift system for work platforms |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0854110A1 EP0854110A1 (en) | 1998-07-22 |
| EP0854110B1 true EP0854110B1 (en) | 2003-01-29 |
Family
ID=8034495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97122979A Expired - Lifetime EP0854110B1 (en) | 1997-01-14 | 1997-12-30 | Scissors lift system for working platforms |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0854110B1 (en) |
| AT (1) | ATE231820T1 (en) |
| DE (2) | DE29700496U1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004044969A1 (en) * | 2004-09-01 | 2006-03-02 | Hans Balzer Gmbh & Co. Kg Werkstatt- Und Fahrzeugtechnik | Lifting device for motor and rail vehicles comprises a platform which moves along a pit base |
| FR2903974B1 (en) * | 2006-07-19 | 2009-12-04 | Twist | MOBILE SELF-PROPELLED DEVICE AND CONTROL TOWER COMPRISING SAME |
| CN101391733A (en) * | 2008-07-25 | 2009-03-25 | 白天海 | Hydraulic mobile lifting platform and labor-saving apparatus |
| CN101700863B (en) | 2009-02-05 | 2013-05-01 | 崔侃 | Shear v shape aloft work hoist vehicle with compact structure |
| CN101817488A (en) * | 2010-05-18 | 2010-09-01 | 高树伟 | Lift fetching vehicle |
| CN102862930A (en) * | 2012-09-25 | 2013-01-09 | 济南大力神机械制造有限公司 | Scissor lift |
| CN110154001A (en) * | 2019-06-17 | 2019-08-23 | 清华大学 | Positioning robot |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2402579A (en) * | 1945-05-24 | 1946-06-25 | Weaver Mfg Co | Load lifter |
| US2945551A (en) * | 1957-08-05 | 1960-07-19 | Mark H Annin | Portable platform elevating device |
| US3596735A (en) * | 1969-10-30 | 1971-08-03 | Howard H Denier | Portable elevator working and load-lifting platform |
| GB1403973A (en) * | 1973-09-10 | 1975-08-28 | Mark Ind | Scissors lift assembly |
| US4930598A (en) * | 1988-07-25 | 1990-06-05 | 501 Sky Climber, Inc. | Scissors lift apparatus |
| CA2115870C (en) * | 1993-08-31 | 1999-01-05 | Kenneth J. Zimmer | Single beam aerial work platform |
-
1997
- 1997-01-14 DE DE29700496U patent/DE29700496U1/en not_active Expired - Lifetime
- 1997-12-30 EP EP97122979A patent/EP0854110B1/en not_active Expired - Lifetime
- 1997-12-30 DE DE59709226T patent/DE59709226D1/en not_active Expired - Fee Related
- 1997-12-30 AT AT97122979T patent/ATE231820T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ATE231820T1 (en) | 2003-02-15 |
| DE29700496U1 (en) | 1997-02-20 |
| EP0854110A1 (en) | 1998-07-22 |
| DE59709226D1 (en) | 2003-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0516938B1 (en) | Device for the stepwise raising of heavy weights for tower cranes or working platforms | |
| DE102009016033B4 (en) | Lattice boom and lattice boom | |
| EP2253764B1 (en) | Frame-shaped truss | |
| EP0458184B1 (en) | Fork lift truck | |
| EP0854110B1 (en) | Scissors lift system for working platforms | |
| DE2250428C3 (en) | Lifting device for vehicles, in particular motor vehicles | |
| EP0356761B1 (en) | Scissor lift device, especially for a working platform | |
| EP0007999B1 (en) | Underframe adaptable on uneven ground | |
| DE19642066A1 (en) | Mobile crane with main boom and mast in adjustable guyed system | |
| EP0918036B1 (en) | Device for suspending a rail,in particular a hollow rail open to the bottom from a hanging crane | |
| DE2228108A1 (en) | COLLAPSIBLE LIFTING OR CONSTRUCTION SCAFFOLD | |
| DE4030167C2 (en) | ||
| DE2811385A1 (en) | TRAVERSE | |
| DE3910180C2 (en) | ||
| EP1185478B1 (en) | Working platform | |
| DE2556365C2 (en) | Support tower | |
| DE3315136C1 (en) | Scissor-type lifting platform | |
| EP0197109B1 (en) | Double scissor-type vehicle jack | |
| DE3843996A1 (en) | MAST FOR A RACK ELEVATOR | |
| DE968542C (en) | Cap for supporting the hanging wall, especially when building longwall | |
| DE19522483A1 (en) | Mechanical toggle press | |
| DE3810070A1 (en) | HEIGHT CONVEYOR CARRIED BY A VEHICLE | |
| CH620490A5 (en) | Supporting structure for a shuttering | |
| DE2348164A1 (en) | HIGH WORKING SCAFFOLD | |
| DE2755690A1 (en) | DEVICE FOR STORAGE, HANDLING AND TRANSPORTATION OF FRAGILE MATERIAL IN TABLE FORM |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI PAYMENT 980117 |
|
| 17P | Request for examination filed |
Effective date: 19990113 |
|
| AKX | Designation fees paid |
Free format text: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE |
|
| AXX | Extension fees paid |
Free format text: SI PAYMENT 980117 |
|
| RBV | Designated contracting states (corrected) |
Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: GSL GERMAN STANDARD LIFT GMBH |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BEGEMANN, DIRK |
|
| 17Q | First examination report despatched |
Effective date: 20010920 |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE |
|
| AX | Request for extension of the european patent |
Extension state: SI |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030129 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20030129 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030129 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030129 Ref country code: GB Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030129 Ref country code: FR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030129 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
| REF | Corresponds to: |
Ref document number: 59709226 Country of ref document: DE Date of ref document: 20030306 Kind code of ref document: P |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030429 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030429 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030429 |
|
| NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
| GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 20030129 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030730 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D Ref document number: 0854110E Country of ref document: IE |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| EN | Fr: translation not filed | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031230 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031230 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031231 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031231 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031231 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031231 |
|
| 26N | No opposition filed |
Effective date: 20031030 |
|
| BERE | Be: lapsed |
Owner name: GERMAN STANDARD LIFT G.M.B.H. *GSL Effective date: 20031231 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040701 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |