EP0346246A1 - Telescopic mast enabling maintenance of position and manoeuvring of a basket or a working platform, the displacements of which are controlled by a travelling crane - Google Patents
Telescopic mast enabling maintenance of position and manoeuvring of a basket or a working platform, the displacements of which are controlled by a travelling crane Download PDFInfo
- Publication number
- EP0346246A1 EP0346246A1 EP89420170A EP89420170A EP0346246A1 EP 0346246 A1 EP0346246 A1 EP 0346246A1 EP 89420170 A EP89420170 A EP 89420170A EP 89420170 A EP89420170 A EP 89420170A EP 0346246 A1 EP0346246 A1 EP 0346246A1
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- European Patent Office
- Prior art keywords
- barrel
- shaft
- nacelle
- fixed
- working platform
- 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.)
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- 238000012423 maintenance Methods 0.000 title description 4
- 238000006073 displacement reaction Methods 0.000 title description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
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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
Definitions
- the present invention relates to an improvement made to telescopic masts or columns which are used on the installations making it possible to provide for the upkeep and maintenance of various installations and more particularly of aircraft and which serve to ensure the maintenance and maneuvers of a work platform or platform.
- the most widespread consists, on the one hand, in associating the fixed upper barrel with a carriage carried by the overhead crane, the lower barrel supporting, for its part, the nacelle or work platform which can be rotated around the end of this barrel in order to be able to position it precisely in the vicinity of the area of the appliance where the interventions must be carried out.
- the invention therefore relates to an improvement made to telescopic masts making it possible to maintain and maneuver a nacelle or working platform, said mast being mounted on an overhead crane making it possible to move it. and comprising three coaxial elementary barrels, the upper barrel being mounted fixed on a carriage movable on the beam of the overhead crane, the lower barrel supporting the nacelle or working platform proper, and it is characterized in that: - The three elementary barrels are slidably mounted relative to each other, so that the upper fixed barrel is disposed inside the intermediate barrel, the latter being itself surrounded by the extreme nacelle barrel; - the control of the nacelle carrier extreme barrel is obtained by means of one or more main cables controlled by a lifting winch mounted on the support carriage; - the proportional ascent of the intermediate barrel and the extreme barrel is obtained by means of auxiliary cables and appropriate pulleys associated with the intermediate barrel and the fixed barrel; - An assembly forming a counterweight is guided inside the fixed inner barrel and partially balances the mobile assembly, this counterweight having a mass greater
- the telescopic mast according to the invention and which is designated by the general reference (1) is mounted on a carriage (2) movable on the beam (3) of an overhead crane.
- the mast telescopic (1) is arranged vertically below the carriage (2) and consists, in accordance with the invention, of three elementary drums (4,5,6) slidably mounted one inside the other.
- the upper barrel (4) is a fixed barrel secured to the chassis of the carriage (2).
- the extreme barrel (6) supports, for its part, a conventional nacelle or platform (7), this nacelle being able to rotate around this barrel (6), for example by providing at the end of the latter a crown (8) which cooperates with a pinion (9) controlled by a geared motor (10).
- the cross section of the different drums can be any and will preferably be hexagonal in order to obtain perfect guidance of the different elements with respect to each other. Lateral guide means are provided to ensure perfect positioning of the different elementary drums with respect to each other.
- the barrels (4,5,6) are mounted so that the fixed barrel (4) is placed inside the assembly, the intermediate barrel (5) sliding on the periphery of the fixed barrel, while the extreme mobile barrel (6) comes, meanwhile, surround the intermediate barrel (5).
- an assembly comprising, on the one hand a main control cable (11) actuated by a lifting winch (12) mounted on the carriage (2) and on the other hand, auxiliary cables (13,14).
- Proportional lifting of barrels movable (5,6) is obtained, on the one hand, by connecting the ends of the cable (13) where the upper end of the mobile barrel (6) and at the lower end of the fixed barrel (4), a pulley of return (15) being provided at the upper part of the intermediate barrel (5) and, on the other hand, under the action of a cable (14) which is fixed to the upper part of the intermediate barrel (5) of a side, and on the other to a counterweight assembly (16) which is guided inside the fixed inner barrel (4).
- the cable (14) passes around a return pulley (17) provided at the upper part of the fixed shaft (4).
- the counterweight assembly has a mass greater than that of the intermediate barrel (5).
- the counterweight assembly (16) balances the movable assembly (5,6,7) and it is therefore possible to use very low power lifting winches. Furthermore, taking into account the arrangement of the different drums (4,5,6) relative to each other, it is possible to raise the nacelle to a higher level than in previous solutions comprising drums of the same length, since according to the invention, the elementary barrels can overlap over their entire length.
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
- Control And Safety Of Cranes (AREA)
- Types And Forms Of Lifts (AREA)
- Wind Motors (AREA)
- Motorcycle And Bicycle Frame (AREA)
Abstract
Description
La présente invention concerne un perfectionnement apporté aux mâts ou colonnes télescopiques qui sont utilisés sur les installations permettant d'assurer l'entretien et la maintenance d'installations diverses et plus particulièrement d'avions et qui servent à assurer le maintien et les manoeuvres d'une nacelle ou plateforme de travail.The present invention relates to an improvement made to telescopic masts or columns which are used on the installations making it possible to provide for the upkeep and maintenance of various installations and more particularly of aircraft and which serve to ensure the maintenance and maneuvers of a work platform or platform.
Dans le domaine de l'aéronautique, pour assurer les opérations d'entretien qui nécessitent un accès par l'extérieur de l'appareil, on utilise des plateformes de travail dont les déplacements sont commandés par un pont roulant et qui peuvent être montés ou abaissés par l'intermédiaire d'un mât télescopique constitué d'une pluralité de fûts élémentaires, coulissant les uns par rapport aux autres et qui peuvent être développés depuis le sol jusqu'au voisinage du pont roulant.In the aeronautical field, to provide maintenance operations which require access from outside the apparatus, work platforms are used, the movements of which are controlled by an overhead crane and which can be raised or lowered by means of a telescopic mast made up of a plurality of elementary drums, sliding in relation to each other and which can be developed from the ground to the vicinity of the traveling crane.
Parmi les solutions proposées à ce jour, la plus répandue consiste, d'une part, à associer le fût supérieur fixe à un chariot porté par le pont roulant, le fût inférieur supportant, quant à lui, la nacelle ou plateforme de travail qui peut être entraînée en rotation autour de l'extrémité de ce fût afin de pouvoir la positionner avec précision au voisinage de la zone de l'appareil où doivent être effectuées les interventions.Among the solutions proposed to date, the most widespread consists, on the one hand, in associating the fixed upper barrel with a carriage carried by the overhead crane, the lower barrel supporting, for its part, the nacelle or work platform which can be rotated around the end of this barrel in order to be able to position it precisely in the vicinity of the area of the appliance where the interventions must be carried out.
Diverses solutions ont été proposées à ce jour pour assurer le guidage et la commande des déplacements des fûts élémentaires constituant un tel mât télescopique.Various solutions have been proposed to date for guiding and controlling the movements of the elementary drums constituting such a telescopic mast.
Parmi ces solutions, on peut citer celle faisant l'objet du brevet US-A-3 602 335 qui décrit un mode de réalisation dans lequel le mât télescopique comporte seulement deux fûts élémentaires, le fût inférieur supportant la passerelle de travail étant déplacé au moyen d'un treuil disposé sur le chariot mobile et guidé le long du fût fixe supérieur par un système positif du type à crémaillère. Une telle solution assure une grande précision dans les déplacements, une très bonne sécurité mais présente comme inconvénient d'être lourde et coûteuse à réaliser.Among these solutions, mention may be made of that which is the subject of US-A-3,602,335 which describes an embodiment in which the telescopic mast comprises only two elementary drums, the lower drum supporting the working bridge being moved by means of a winch arranged on the mobile carriage and guided along the upper fixed barrel by a positive system of the rack type. Such a solution ensures high precision in movement, very good security, but has the drawback of being heavy and costly to produce.
Dans d'autres réalisations comportant une pluralité de fûts élémentaires, afin d'obtenir un déplacement proportionnel des différents fûts les uns par rapport aux autres, il a été proposé d'utiliser des systèmes de câbles et de poulies de renvoi reliant de manière appropriée la partie supérieure et la partie inférieure des différents fûts les uns par rapport aux autres et ce, d'une manière similaire aux enseignements du brevet allemand 921 172 qui concerne une plateforme élévatrice permettant l'accès par l'extérieur à des immeubles.In other embodiments comprising a plurality of elementary drums, in order to obtain a proportional displacement of the different drums with respect to each other, it has been proposed to use systems of cables and deflection pulleys suitably connecting the upper part and lower part of the different drums with respect to each other, in a manner similar to the teachings of German patent 921 172 which relates to a lifting platform allowing access from the outside to buildings.
De tels ensembles donnent satisfaction d'un point de vue technique, mais nécessitent pour assurer les déplacements la mise en oeuvre de treuils ayant une puissance importante.Such assemblies are satisfactory from a technical point of view, but require the implementation of winches having a large power to ensure movement.
Le Demandeur, a proposé récemment d'adapter cette technologie aux mâts télescopiques montés sur un pont roulant mais, comme les fûts élémentaires du mât ont une section décroissante en partant du fût fixe supérieur jusqu'au fût mobile inférieur, cela entraîne comme inconvénient de limiter les possibilités de remontée de la nacelle ou plateforme de travail, étant donné qu'il n'est pas possible d'encastrer les différents fûts élémentaires sur toute leur longueur et qu'ils présentent toujours une portion débordante d'un fût par rapport au suivant. En conséquence, pour une hauteur de travail déterminée, cela implique de relever légèrement le niveau du pont roulant de commande. Par ailleurs, les solutions proposées à ce jour nécessitent toujours des treuils de levage très puissants.The Applicant recently proposed to adapt this technology to telescopic masts mounted on an overhead crane, but, since the elementary drums of the mast have a decreasing section from the upper fixed barrel to the lower mobile barrel, this has the drawback of limiting the possibilities of raising the nacelle or work platform, since it it is not possible to embed the different elementary drums over their entire length and that they always have an overhanging portion of one barrel relative to the next. Consequently, for a given working height, this involves raising the level of the control crane slightly. In addition, the solutions proposed to date still require very powerful lifting winches.
Or on a trouvé et c'est ce qui fait l'objet de la présente invention, un perfectionnement apporté à de tels mâts télescopiques qui permet de résoudre l'ensemble de ces problèmes et notamment d'assurer une remontée maximale de la nacelle par rapport au pont de maintien et d'augmenter la sécurité de fonctionnement de tels ensembles par le fait qu'il autorise l'utilisation de treuils de levage de plus faible puissance.Now we have found, and this is what is the subject of the present invention, an improvement made to such telescopic masts which makes it possible to solve all of these problems and in particular to ensure maximum lifting of the nacelle relative to to the support bridge and to increase the operational safety of such assemblies by the fact that it allows the use of lower power lifting winches.
D'une manière générale, l'invention concerne donc un perfectionnement apporté aux mâts télescopiques permettant d'assurer le maintien et les manoeuvres d'une nacelle ou plateforme de travail, ledit mât étant monté sur un pont roulant permettant d'en assurer les déplacements et comportant trois fûts élémentaires coaxiaux, le fût supérieur étant monté fixe sur un chariot déplaçable sur la poutre du pont roulant, le fût inférieur supportant la nacelle ou plateforme de travail proprement dite, et il se caractérise en ce que :
- les trois fûts élémentaires sont montés coulissants les uns par rapport aux autres, de telle sorte que le fût fixe supérieur soit disposé à l'intérieur du fût intermédiaire, ce dernier étant lui-même entouré par le fût extrême porte-nacelle ;
- la commande de fût extrême porte-nacelle est obtenue au moyen d'un ou plusieurs câbles principaux commandés par un treuil de levage monté sur le chariot support ;
- la remontée proportionnelle du fût intermédiaire et du fût extrême est obtenue au moyen de câbles auxiliaires et de poulies appropriées associées au fût intermédiaire et au fût fixe ;
- un ensemble formant contrepoids est guidé à l'intérieur du fût intérieur fixe et équilibre en partie l'ensemble mobile, ce contrepoids ayant une masse supérieure à celle du fût intermédiaire.In general, the invention therefore relates to an improvement made to telescopic masts making it possible to maintain and maneuver a nacelle or working platform, said mast being mounted on an overhead crane making it possible to move it. and comprising three coaxial elementary barrels, the upper barrel being mounted fixed on a carriage movable on the beam of the overhead crane, the lower barrel supporting the nacelle or working platform proper, and it is characterized in that:
- The three elementary barrels are slidably mounted relative to each other, so that the upper fixed barrel is disposed inside the intermediate barrel, the latter being itself surrounded by the extreme nacelle barrel;
- the control of the nacelle carrier extreme barrel is obtained by means of one or more main cables controlled by a lifting winch mounted on the support carriage;
- the proportional ascent of the intermediate barrel and the extreme barrel is obtained by means of auxiliary cables and appropriate pulleys associated with the intermediate barrel and the fixed barrel;
- An assembly forming a counterweight is guided inside the fixed inner barrel and partially balances the mobile assembly, this counterweight having a mass greater than that of the intermediate barrel.
Grâce à un tel mode de réalisation, il est possible non seulement d'avoir un fonctionnement sûr et précis du mât télescopique ainsi formé et ce, en limitant la puissance du treuil de levage, étant donné que les éléments mobiles sont pratiquement équilibrés automatiquement mais également, d'obtenir une remontée maximale de la nacelle étant donné que les différents fûts élémentaires peuvent se recouvrir sur toute leur longueur sans déborder les uns par rapport aux autres.Thanks to such an embodiment, it is possible not only to have a safe and precise operation of the telescopic mast thus formed and this, by limiting the power of the lifting winch, since the mobile elements are practically balanced automatically but also , to obtain a maximum ascent of the nacelle since the different elementary drums can overlap over their entire length without overflowing with respect to each other.
L'invention et les avantages qu'elle apporte seront cependant mieux compris grâce à l'exemple de réalisation donné ci-après à titre indicatif mais non limitatif et qui est illustré par le schéma unique annexé qui est une vue schématique en élévation d'un pont roulant comportant un mât télescopique conforme à l'invention et dont les différents éléments sont représentés en coupe.The invention and the advantages which it brings will however be better understood thanks to the example of embodiment given below for information but not limitation and which is illustrated by the single appended diagram which is a schematic elevation view of a traveling crane comprising a telescopic mast according to the invention and the various elements of which are shown in section.
Si l'on se reporte au schéma annexé, le mât télescopique conforme à l'invention et qui est désigné par la référence générale (1) est monté sur un chariot (2) déplaçable sur la poutre (3) d'un pont roulant. Un tel pont étant bien connu des techniciens ne sera pas développé en détail dans la suite de la description. Le mât télescopique (1) est disposé verticalement en-dessous du chariot (2) et est constitué, conformément à l'invention, de trois fûts élémentaires (4,5,6) montés coulissants les uns dans les autres. Le fût supérieur (4) est un fût fixe solidarisé du châssis du chariot (2). Le fût extrême (6) supporte, quant à lui, une nacelle ou plateforme (7) conventionnelle, cette nacelle pouvant tourner autour de ce fût (6), par exemple en prévoyant à l'extrémité de ce dernier une couronne (8) qui coopère avec un pignon (9) commandé par un motoréducteur (10).If we refer to the attached diagram, the telescopic mast according to the invention and which is designated by the general reference (1) is mounted on a carriage (2) movable on the beam (3) of an overhead crane. Such a bridge being well known to technicians will not be developed in detail in the following description. The mast telescopic (1) is arranged vertically below the carriage (2) and consists, in accordance with the invention, of three elementary drums (4,5,6) slidably mounted one inside the other. The upper barrel (4) is a fixed barrel secured to the chassis of the carriage (2). The extreme barrel (6) supports, for its part, a conventional nacelle or platform (7), this nacelle being able to rotate around this barrel (6), for example by providing at the end of the latter a crown (8) which cooperates with a pinion (9) controlled by a geared motor (10).
La section transversale des différents fûts peut être quelconque et sera de préférence de forme hexagonale et ce, afin d'obtenir un guidage parfait des différents éléments les uns par rapport aux autres. Des moyens de guidage latéraux sont prévus pour assurer un positionnement parfait des différents fûts élémentaires les uns par rapport aux autres.The cross section of the different drums can be any and will preferably be hexagonal in order to obtain perfect guidance of the different elements with respect to each other. Lateral guide means are provided to ensure perfect positioning of the different elementary drums with respect to each other.
Conformément à l'invention, et contrairement aux solutions antérieures, les fûts (4,5,6) sont montés de telle sorte que le fût fixe (4) soit disposé à l'intérieur de l'ensemble, le fût intermédiaire (5) venant coulisser sur la périphérie, du fût fixe, alors que le fût mobile extrême (6) vient, quant à lui, entourer le fût intermédiaire (5).In accordance with the invention, and unlike previous solutions, the barrels (4,5,6) are mounted so that the fixed barrel (4) is placed inside the assembly, the intermediate barrel (5) sliding on the periphery of the fixed barrel, while the extreme mobile barrel (6) comes, meanwhile, surround the intermediate barrel (5).
Pour assurer la commande des déplacements verticaux de la nacelle (10) ainsi que d'obtenir une remontée (ou descente) proportionnelle du fût intermédiaire (5) et du fût extrême (6), conformément à l'invention on utilise un ensemble comportant, d'une part un câble principal de commande (11) actionné par un treuil de levage (12) monté sur le chariot (2) et d'autre part, des câbles auxiliaires (13,14). Le relevage proportionnel des fûts mobiles (5,6) est obtenu, d'une part, en reliant les extrémités du câble (13) où l'extrémité supérieure du fût mobile (6) et à l'extrémité inférieure du fût fixe (4), une poulie de renvoi (15) étant prévue à la partie supérieure du fût intermédiaire (5) et, d'autre part, sous l'action d'un câble (14) qui est fixé à la partie supérieure du fût intermédiaire (5) d'un côté, et de l'autre à un ensemble formant contrepoids (16) qui est guidé à l'intérieur du fût intérieur fixe (4). Le câble (14) passe autour d'une poulie de renvoi (17) prévue à la partie supérieure du fût fixe (4). L'ensemble formant contrepoids a une masse supérieure à celle du fût intermédiaire (5).To control the vertical movements of the nacelle (10) as well as to obtain a proportional ascent (or descent) of the intermediate barrel (5) and the extreme barrel (6), in accordance with the invention, an assembly is used comprising, on the one hand a main control cable (11) actuated by a lifting winch (12) mounted on the carriage (2) and on the other hand, auxiliary cables (13,14). Proportional lifting of barrels movable (5,6) is obtained, on the one hand, by connecting the ends of the cable (13) where the upper end of the mobile barrel (6) and at the lower end of the fixed barrel (4), a pulley of return (15) being provided at the upper part of the intermediate barrel (5) and, on the other hand, under the action of a cable (14) which is fixed to the upper part of the intermediate barrel (5) of a side, and on the other to a counterweight assembly (16) which is guided inside the fixed inner barrel (4). The cable (14) passes around a return pulley (17) provided at the upper part of the fixed shaft (4). The counterweight assembly has a mass greater than that of the intermediate barrel (5).
Grâce à un tel mode de réalisation, l'ensemble à contrepoids (16) équilibre l'ensemble mobile (5,6,7) et il est donc possible de faire appel à des treuils de levage de très faible puissance. Par ailleurs, compte-tenu de la disposition des différents fûts (4,5,6) les uns par rapport aux autres, il est possible de remonter la nacelle à un niveau plus élevé que dans les solutions antérieures comportant des fûts de même longueur, étant donné que selon l'invention, les fûts élémentaires peuvent se recouvrir sur toute leur longueur.Thanks to such an embodiment, the counterweight assembly (16) balances the movable assembly (5,6,7) and it is therefore possible to use very low power lifting winches. Furthermore, taking into account the arrangement of the different drums (4,5,6) relative to each other, it is possible to raise the nacelle to a higher level than in previous solutions comprising drums of the same length, since according to the invention, the elementary barrels can overlap over their entire length.
Bien entendu, l'invention n'est pas limitée à l'exemple de réalisation décrit précédemment mais elle en couvre toutes les variantes réalisées dans le même esprit.Of course, the invention is not limited to the embodiment described above, but it covers all the variants produced in the same spirit.
Claims (1)
- les trois fûts élémentaires (4,5,6) sont montés coulissants les uns par rapport aux autres, de telle sorte que le fût fixe (4) supérieur soit disposé à l'intérieur du fût intermédiaire (5), ce dernier étant lui-même entouré par le fût extrême (6) porte-nacelle ;
- la commande du fût extrême (6) porte-nacelle est obtenue au moyen d'un ou plusieurs câbles principaux commandés par un treuil de levage monté sur le chariot support (2) ;
- la remontée proportionnelle du fût intermédiaire (5) et du fût extrême (6) est obtenue au moyen de câbles auxiliaires et de poulies appropriées (17) associées au fût intermédiaire (5) et au fût fixe (4) ;
- un ensemble formant contrepoids est guidé à l'intérieur du fût intérieur fixe et équilibre en partie l'ensemble mobile, ce contrepoids ayant une masse supérieure à celle du fût intermédiaire (5).1 / Improvement brought to the telescopic masts making it possible to maintain and maneuver a nacelle or working platform, said mast being mounted on an overhead crane making it possible to move it and comprising three coaxial elementary barrels, the upper barrel being fixedly mounted on a carriage movable on the beam of the overhead crane, the lower shaft supporting the nacelle or working platform proper, characterized in that:
- the three elementary barrels (4,5,6) are slidably mounted relative to each other, so that the fixed fixed barrel (4) is placed inside the intermediate barrel (5), the latter being itself - even surrounded by the extreme barrel (6) basket holder;
- the control of the extreme barrel (6) nacelle holder is obtained by means of one or more main cables controlled by a lifting winch mounted on the support carriage (2);
- The proportional rise of the intermediate barrel (5) and the extreme barrel (6) is obtained by means of auxiliary cables and appropriate pulleys (17) associated with the intermediate barrel (5) and the fixed barrel (4);
- An assembly forming a counterweight is guided inside the fixed inner barrel and partially balances the mobile assembly, this counterweight having a mass greater than that of the intermediate barrel (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT89420170T ATE77802T1 (en) | 1988-06-10 | 1989-05-16 | A TELESCOPIC MAST ALLOWING THE POSITIONAL STABILITY AND MANEUVERING OF A CAR OR WORK PLATFORM, WHICH MOVEMENTS ARE CONTROLLED BY AN OVERHEAD CRANE. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8808040 | 1988-06-10 | ||
| FR8808040A FR2632621B1 (en) | 1988-06-10 | 1988-06-10 | TELESCOPIC MAT FOR MAINTAINING AND MANEUVERING A NACELLE OR WORKING PLATFORM WHOSE MOVEMENTS ARE CONTROLLED BY A ROLLING BRIDGE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0346246A1 true EP0346246A1 (en) | 1989-12-13 |
| EP0346246B1 EP0346246B1 (en) | 1992-07-01 |
Family
ID=9367343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89420170A Expired - Lifetime EP0346246B1 (en) | 1988-06-10 | 1989-05-16 | Telescopic mast enabling maintenance of position and manoeuvring of a basket or a working platform, the displacements of which are controlled by a travelling crane |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0346246B1 (en) |
| AT (1) | ATE77802T1 (en) |
| DE (1) | DE68901956T2 (en) |
| ES (1) | ES2034724T3 (en) |
| FR (1) | FR2632621B1 (en) |
Cited By (1)
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|---|---|---|---|---|
| WO2005085067A1 (en) * | 2004-03-03 | 2005-09-15 | Otmar Fahrion | Maintenance unit for aircraft |
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| CN102765682B (en) * | 2012-07-30 | 2014-09-03 | 无锡华科机械设备有限公司 | Suspended platform mounting rack |
| CN112079302B (en) * | 2020-08-10 | 2022-03-08 | 华翔翔能科技股份有限公司 | Novel single-rod support system for transformer bushing equipment |
| CN116969355B (en) * | 2023-08-28 | 2024-04-12 | 湖北辉创重型工程有限公司 | Lifting mechanism of bridge inspection vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1060787B (en) * | 1957-08-20 | 1959-07-02 | Demag Zug Gmbh | Stacker crane |
| DE2045089A1 (en) * | 1969-09-17 | 1971-03-18 | IMAS Industria Medolese Avvolgibih Serramenti, Medole, Mantua (Italien) | |
| US3602335A (en) * | 1969-09-25 | 1971-08-31 | Eaton Yale & Towne | Platform positioning mechanism |
| US4538954A (en) * | 1983-12-01 | 1985-09-03 | Harnischfeger Corporation | Stacker crane having narrow mast structure |
| FR2572375A1 (en) * | 1984-10-26 | 1986-05-02 | Lagneau Jean | Safety device for a suspended load |
| DE3528996C1 (en) * | 1985-08-13 | 1986-12-18 | Mannesmann AG, 4000 Düsseldorf | Telescopic column |
| US4657112A (en) * | 1986-04-25 | 1987-04-14 | Up-Right, Inc. | Mast construction for pedestal scaffold |
-
1988
- 1988-06-10 FR FR8808040A patent/FR2632621B1/en not_active Expired - Lifetime
-
1989
- 1989-05-16 AT AT89420170T patent/ATE77802T1/en not_active IP Right Cessation
- 1989-05-16 ES ES198989420170T patent/ES2034724T3/en not_active Expired - Lifetime
- 1989-05-16 EP EP89420170A patent/EP0346246B1/en not_active Expired - Lifetime
- 1989-05-16 DE DE8989420170T patent/DE68901956T2/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1060787B (en) * | 1957-08-20 | 1959-07-02 | Demag Zug Gmbh | Stacker crane |
| DE2045089A1 (en) * | 1969-09-17 | 1971-03-18 | IMAS Industria Medolese Avvolgibih Serramenti, Medole, Mantua (Italien) | |
| US3602335A (en) * | 1969-09-25 | 1971-08-31 | Eaton Yale & Towne | Platform positioning mechanism |
| US4538954A (en) * | 1983-12-01 | 1985-09-03 | Harnischfeger Corporation | Stacker crane having narrow mast structure |
| FR2572375A1 (en) * | 1984-10-26 | 1986-05-02 | Lagneau Jean | Safety device for a suspended load |
| DE3528996C1 (en) * | 1985-08-13 | 1986-12-18 | Mannesmann AG, 4000 Düsseldorf | Telescopic column |
| US4657112A (en) * | 1986-04-25 | 1987-04-14 | Up-Right, Inc. | Mast construction for pedestal scaffold |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005085067A1 (en) * | 2004-03-03 | 2005-09-15 | Otmar Fahrion | Maintenance unit for aircraft |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE77802T1 (en) | 1992-07-15 |
| FR2632621A1 (en) | 1989-12-15 |
| ES2034724T3 (en) | 1993-04-01 |
| FR2632621B1 (en) | 1990-08-17 |
| EP0346246B1 (en) | 1992-07-01 |
| DE68901956D1 (en) | 1992-08-06 |
| DE68901956T2 (en) | 1993-02-18 |
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