EP2318301B1 - Plate-forme de levage - Google Patents

Plate-forme de levage Download PDF

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Publication number
EP2318301B1
EP2318301B1 EP09807943A EP09807943A EP2318301B1 EP 2318301 B1 EP2318301 B1 EP 2318301B1 EP 09807943 A EP09807943 A EP 09807943A EP 09807943 A EP09807943 A EP 09807943A EP 2318301 B1 EP2318301 B1 EP 2318301B1
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EP
European Patent Office
Prior art keywords
scissor
platform
elements
lifting platform
accordance
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.)
Not-in-force
Application number
EP09807943A
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German (de)
English (en)
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EP2318301A1 (fr
Inventor
Raymond Smith
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MavelTech AG
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MavelTech AG
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Publication date
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Priority to EP09807943A priority Critical patent/EP2318301B1/fr
Publication of EP2318301A1 publication Critical patent/EP2318301A1/fr
Application granted granted Critical
Publication of EP2318301B1 publication Critical patent/EP2318301B1/fr
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    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/18—Scaffolds primarily resting on the ground adjustable in height
    • E04G1/22—Scaffolds having a platform on an extensible substructure, e.g. of telescopic type or with lazy-tongs mechanism

Definitions

  • the invention relates to a lifting platform according to the preamble of claim 1.
  • the lift comprises a subframe, a platform and a scissor lift mechanism arranged therebetween, the scissors lift mechanism comprising scissor elements which are mutually rotatably mounted both on common axes of rotation and rotatably mounted on axes of rotation with respect to the subframe and platform, the scissor elements are designed as telescopic elements and each having a first and a second scissor element part, which are telescopically mutually displaceable.
  • the inventive lift has the advantage that it is relatively small and lightweight and yet has a relatively large lifting height, at least one lifting height as this is mainly used in practical use.
  • a small model of the lifting platform according to the invention could for example have a total weight of 500 kg. However, depending on the size of the lift, it may also have a total weight of 1000 kg or more.
  • the small, lightweight and therefore easy to transport embodiment is of particular importance, since the previously known scissor lift mechanisms and lifts are usually made relatively large and heavy, which is why high transport costs. For example, a large number of lifting platforms are used at large construction sites at the same time. In addition, the lifts are often only for a relatively short time in use, which is why the simple and inexpensive transportability of the inventive lift is of crucial economic importance.
  • the lift can also easily by hand moved and transported at least over short distances.
  • the scissors lift mechanism has only a few scissor elements, which is why the platform is relatively stable even at maximum lift height. Since the scissors elements are designed as telescopic elements, the lift according to the invention has the property that, despite a small number of scissor elements, it can achieve a relatively high maximum lifting height, at least one lifting height which is sufficient in most applications.
  • the lifting platform according to the invention therefore has a combination of extremely advantageous properties, namely a relatively high lifting height, compact design, light weight and high platform stability.
  • the relatively small dimension and the relatively light weight also makes it possible to transport a plurality of the lifting platforms according to the invention at the same time, for example on a lorry. In addition, a person is sufficient to load and unload these lifts, or to operate the lift in use.
  • Fig. 1 shows a first embodiment of a lift 1 in the retracted state, wherein the lift 1 comprises a subframe 3, a platform 2 and a scissor lift mechanism 4 arranged therebetween.
  • the subframe 3 comprises in the illustrated embodiment, two spaced mounting points 3a, which form an axis of rotation for scissors elements 5.6.
  • the subframe 3 also comprises on the left a wheel 3b and on the right a foot 3i, both of which rest on a flat surface.
  • the subframe 3 also comprises a weight holder 3c with a fixing point 3d, configured as a rotation axis, on which a weight 9 is rotatably held.
  • the subframe 3 comprises on the right side an attachment point designed as a rotation axis 3f, on which a handle 3e is rotatably mounted.
  • the platform 2 comprises two attachment points 2a, which are shown only schematically, but which are firmly connected to the platform 2, and which form an axis of rotation for scissor elements 7,8.
  • the position of the common axes of rotation 56, 57, 68 and 78 is also shown, which form mutual axes of rotation of the scissors elements 5, 6, 7 and 8, not shown.
  • These scissors elements run in the in FIG. 1 illustrated, retracted state parallel or substantially parallel to the subframe. 3
  • the Figures 2 and 3 show the lift according to FIG. 1 in the extended state, wherein the FIG. 2 represents the lower portion of the lift 1 and the FIG. 3
  • the scissor lift mechanism 4 comprises a total of four scissor elements 5, 6, 7, 8 which are mutually rotatably mounted both on common axes of rotation 56, 57, 68, and, and which are also rotatably mounted about the axis of rotation 2a, 3a with respect to the sub-frame 3 or the platform 2.
  • This embodiment has the advantage that the scissors lift mechanism 4 in the contracted state has a very small height, so that on the one hand can easily be ascended to the platform 2, and so on the other hand, the lift 1 during transport has a low overall height.
  • the scissors elements 5, 6, 7, 8 are designed as telescopic elements, which means that the scissor elements 5, 6, 7, 8 are each a first and a second scissor element part 5a, 5b; 6a, 6b; 7a, 7b; 8a, 8b, which are telescopically displaced in the direction of displacement A mutually.
  • the scissors lift mechanism 4 in a particularly advantageous embodiment with respect to a plane passing through the attachment points 57 and 68 symmetrically designed so that the upper scissor elements 7 and 8 are designed as telescopic elements, with a first and a second scissor element part 7a, 7b; 8a, 8b, which are telescopically displaced in the direction of displacement A mutually.
  • the telescopic element has the advantage that the sub-frame 3 or the platform 2 can be made relatively short and still a large maximum lifting height is possible, especially if, as in the Figures 2 and 3 shown, a total of only 4 scissor elements 5, 6, 7, 8 are used.
  • the use of a total of only 4 scissors elements 5, 6, 7, 8 has the advantage that the platform 2 is held particularly stable with respect to the subframe 3.
  • a lifting platform 1 with additional scissor elements 5, 6, 7, 8, for example, by repositioning at the attachment points 2a, for example, in the Figures 2 and 3 arranged scissors lift mechanism 4 is arranged so that the lifting platform 1 configured in this way two successive arranged Scherenliftmechanismen 4, like this in the Figures 2 and 3 would be included.
  • the lifting platform 1 could also include a plurality of such, successively arranged scissor lift mechanisms 4, in particular three, four or five, in order to achieve a particularly large lifting height with the platform 2.
  • the scissor elements 5, 6, 7, 8 preferably have a stop 5c, 6c, 7c, 8c to limit the displacement of the first scissor element part 5a, 6a, 7a, 8a to the hinge part 5f, 6f, 7f, 8f.
  • FIG. 2 shows a lift 1 whose two scissor elements 5.6 have a common axis of rotation 56, wherein each scissor element 5.6 rotatable on a common subframe 3 at mutually spaced axes of rotation 3a is mounted, and wherein the mutually telescopically displaceable portion of the first and second scissors element part 5a, 5b; 6a, 6b are arranged between the common axis of rotation 56 and the axes of rotation 3a, wherein the second scissor element part 5b, 6b is connected to the axis of rotation 3a.
  • a connecting means 5g, 6g attached to the subframe 3, which is connected to the first scissor element part 5a, 6a, and which limits in particular the maximum possible stroke of the telescopic element.
  • the connecting means 5g, 6g may for example be designed as a rod which is rotatably mounted at an attachment point 5h, 6h, and which, for example, in the region of the axis of rotation 3a, rotatably and optionally also slidably mounted.
  • the connecting means 5g, 6g can be configured and arranged in a variety of ways.
  • the connecting means 5g, 6g, 7g, 8g is designed in particular as a push rod to transmit a thrust force between the attachment points 2a, 2c, 3a, 3g, 3h and the points 5h, 6h, 7h, 8h.
  • the telescopic element could also be arranged between the axis of rotation 56 and the axes of rotation 57 and 68.
  • FIG. 4 shows that in FIG. 1 illustrated, first embodiment of a lift 1 in the retracted state in a transport position.
  • the lift 1 is raised and held by a person on the handle 3e, wherein a counterweight 9 reduces the maximum required on the handle 3e lifting force, so that the lift 1 is very comfortable and with relatively low forces can be moved.
  • This easy movement is of particular importance when the lift 1 is operated by only one person.
  • the lift 1 can be relatively easily and especially quickly brought to a new location, parked, and the platform are extended again.
  • the inventive lift 1 is particularly well suited for use with frequently changing site.
  • FIG. 5 shows a side view of a second embodiment of a lift 1 in the retracted state.
  • the platform 2, the scissors lift mechanism 4 and the mutual connection of the same are configured identically as in FIG. 1 shown.
  • the scissor elements 6 and 8 shown in detail.
  • the scissor elements 5 and 7 are in the illustrated view behind the scissor elements 6 and 8 and are therefore not visible.
  • the course of the scissor elements 5,6,7,8 is parallel to the platform 2 or parallel to the plane on which the lift 1 is in the illustrated embodiment.
  • the subframe 3 consists of two separate parts 3k, each part comprising 3k wheels 3b.
  • FIG. 6 shows the scissors lift mechanism 4 in the extended state.
  • FIG. 2 This is in itself identical to the one in FIG. 2 designed scissors lift mechanism 4, which is why this will not be described in detail.
  • the main difference to the in FIG. 2 embodiment shown in the Figures 5 and 6 Two-part subframe 3, or the chassis 3.
  • FIG. 6 it can be seen that the two spaced-apart subframe 3k solely on the scissor element 5.6 and optionally in addition to the Holding means 5g, 6g connected. This makes it possible to produce a particularly light lift 1.
  • FIG. 7 shows in a side view another embodiment of a lift 1.
  • the embodiment according to FIG. 7 a simple, running only in one plane sub-frame 3.
  • the scissors lift mechanism 4, the platform 2 and also the pivot points 3a on the subframe 3 are configured identically as in FIG FIG. 3 shown.
  • FIG. 7 Lift shown is particularly suitable for example to be permanently mounted to a place, or to be mounted, for example, on a vehicle such as a truck.
  • the telescopic element is pneumatically or hydraulically operated, and has in an advantageous embodiment, a pneumatic or hydraulic piston with cylinder to effect the change in length of the scissor element 5,6,7,8.
  • a pneumatic or hydraulic piston with cylinder to effect the change in length of the scissor element 5,6,7,8.
  • it is a variety of drives suitable to extend the lift and possibly drive together.
  • a pneumatic or hydraulic, in particular oil-hydraulic, device could be used to drive the telescopic element and an electrical device.
  • each telescopic element can be provided with an electric motor and a spiral rod driven by the electric motor, so that each telescopic element can be individually extended and retracted.
  • Telescope elements with electric motor controlled synchronously, so that synchronously extend or shorten.
  • a motor could be used which raises or pivots the scissors elements 5, 6 relative to the subframe 3, thereby lifting the platform.
  • a manual drive is conceivable, for example with a mechanical crank, thereby raising the scissors elements 4.5 or to change the length of the telescopic elements.
  • FIG. 8 shows a further embodiment of a scissors lift mechanism 3, which is designed substantially similar to that in the Figures 2 and 3 illustrated scissors lift mechanism 4, which is why, in particular, the differences in terms of the scissor lift mechanism according to the Figures 2 and 3 is described. Identical objects are provided with the same reference numerals.
  • the mechanism according to FIG. 8 a fixedly connected to the ground attachment point 3a, which forms the base for the pivoting 6f.
  • the mechanism according to FIG. 8 a sliding bearing 3k, which is displaceable in the direction C in relation to the ground, wherein the sliding bearing 3k forms the basis for the pivoting 5f.
  • FIG. 8 an attachment point 2a which is fixedly connected to a platform 2 shown only symbolically, wherein the attachment point 2a forms the base for the swivel joint 8f.
  • the mechanism according to FIG. 8 an attachment point 2d, which forms the base for the pivot 7f.
  • the platform 2 comprises a sliding bearing 2e in which the attachment point 2d engages, so that the attachment point 2d with respect to the sliding bearing 2e or with respect to the platform 2 is slidably mounted in the direction of movement D.
  • a platform 2 another arrangement to be lifted could also be arranged, for example a lifting platform for a motor vehicle.
  • FIG. 8 Also be arranged on another surface, for example on a vehicle by the substrate U, for example, forms part of a vehicle frame.
  • the mechanism according to FIG. 8 could, for example, also on the in FIG. 2 be shown chassis 3, wherein the mechanism would then be connected via the attachment point 3a fixed to the chassis 3, and the sliding bearing 3k with respect to the chassis 3 in the direction of movement C would be slidably mounted.
  • the scissors lift mechanism 4 comprises scissor elements 5, 6, 7, 8 which are mutually rotatably mounted both on common axes of rotation 56, 57, 68, and at fastening points 2 a, 2 d, 3 a, 3 k, including axes of rotation 5 f, 6 f, 7 f , 8f are rotatably supported with respect to a subframe 3, a platform 2 or a base such as a bottom U, the scissors elements 5, 6, 7, 8 being designed as telescopic elements and respectively a first and a second scissor element part 5a, 5b; 6a, 6b; 7a, 7b; 8a, 8b, which are telescopically mutually displaceable, wherein all scissors elements 5,6,7,8 are designed as telescopic elements, wherein the scissors lift mechanism 4 has at least four scissors elements 5,6,7,8, wherein each two scissor elements 5,6; 7.8 at a crossing point a common axis of rotation 56; 78, each scissor elements
  • the mechanism could, as in FIG. 8 illustrated, further comprising a drive device to raise and lower the mechanism.
  • the drive device comprises three linear drives 10b, 11b, 12b, which each drive a rod 10a, 11a, 12a.
  • the two linear drives 11b, 12b are fixedly connected to the plate 13, wherein the plate 13 is connected to the axis of rotation 56 and is rotatably supported with respect to the scissors elements 5 and 6.
  • the rods 12a and 11a and the linear drive 10b are connected to a plate 14.
  • the rod 10a is rotatably connected at one end to the attachment point 3a and slidably mounted at the other end in the linear drive 10b.
  • the drive device shown is configured such that in the retracted state, the axis of rotation 56 comes to lie approximately in the position designated by 56 ', so that the scissor element. 5 completely retracted, as for example in FIG. 7 is shown schematically.
  • FIG. 8 shown drive device is to be considered only as an exemplary embodiment.
  • the drive device can be configured in a multiplicity of different embodiments and could be designed, for example, as a hydraulic, pneumatic or electric drive.
  • FIG. 10 shows a side view of another embodiment of a lift 1
  • FIG. 9 shows an end view of in FIG. 10
  • This arrangement of the platform 2 is achieved in that, as out FIG. 9 can be seen, two scissors lift mechanisms 4 are arranged laterally of the platform 2, so that the platform 2 is located between the two scissors lift mechanisms 4.
  • the position of the axis of rotation 3a thus determines how deep the platform 2 can be lowered relative to the ground U.
  • the distance between the bottom U and the platform bottom 2g for example in the range between 5 cm and 30 cm, preferably between 10 cm and 20 cm.
  • This arrangement of the platform floor 2g with respect to the underground U allows a very pleasant climbing of the platform 2.
  • the scissors lift mechanism 4 which is in the illustrated view in front of the platform 2, shown only schematically. Since the Scissors lift mechanism 4 located in front of the platform 2, the lower edge 2f of the platform 2 is shown only by dashed lines.
  • FIG. 10 Side view shown is the scissors lift mechanism 4, which is in the illustrated view in front of the platform 2, shown only schematically. Since the Scissors lift mechanism 4 located in front of the platform 2, the lower edge 2f of the platform 2 is shown only by dashed lines.
  • FIG. 10 Side view shown is the scissors lift mechanism 4, which is in the illustrated view in front of the platform 2, shown only schematically. Since the Scissors lift mechanism 4 located in front of the platform 2, the lower edge 2f of the platform 2 is shown only by dashed lines.
  • Shear lift mechanism 4 shown is rotatably connected to the platform 2 at the attachment point 2a, and is slidably connected to the platform 2 at the attachment point 2d via the sliding bearing 2e of the platform 2 in the direction of movement D.
  • the in FIG. 8 illustrated scissors lift mechanism 4 would be in the in FIG. 10 illustrated lifting platform 1 is connected such that the axis of rotation 3a of the left wheel arranged 3b serves as an attachment point for the joint 6f and the scissor element 6, and that the axis of rotation 3a of the right-hand wheel 3b serves as an attachment point for the joint 5f and the scissor element 5.
  • FIG. 9 Scherenliftmechanismus 4 arranged on the left is from the in FIG. 8 illustrated with A viewing direction, wherein the scissors lift mechanism 4 in FIG. 9 , in contrast to FIG. 8 , is completely folded.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Civil Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
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Abstract

Une plate-forme de levage (1) donnée à titre d’exemple comprend un cadre inférieur (3), une plate-forme (2) et un mécanisme élévateur à ciseaux (4) intercalé, le mécanisme élévateur à ciseaux (4) comprenant des éléments de type ciseaux (5,6,7,8), qui sont logés sur des axes de rotation (56,57,68,78) communs de façon à pouvoir tourner réciproquement et qui sont également logés sur un axe de rotation (2a,3a) de façon à pouvoir tourner par rapport au cadre inférieur (3) ou à la plate-forme (2), les éléments de type ciseaux (5,6,7,8) étant conçus comme des éléments télescopiques et présentant respectivement une première et une seconde partie d’éléments à ciseaux (5a,5b; 6a,6b; 7a,7b; 8a,8b), qui peuvent coulisser de façon télescopique les unes par rapport aux autres.

Claims (14)

  1. Plate-forme de levage (1) comprenant un mécanisme élévateur (4) à croisillons et un plateau (2) relié à ce dernier, ledit mécanisme élévateur (4) à croisillons comportant des éléments entrecroisés (5, 6, 7, 8) qui sont, à la fois, montés à rotation réciproque sur des axes communs de rotation (56, 57, 68, 78), et montés à rotation en des points de fixation (2a, 2d, 3a, 3k) incluant des axes (5f, 6f, 7f, 8f) de rotation par rapport audit plateau (2) et à un cadre inférieur (3), ou à une structure sous-jacente telle qu'un sol (U), lesdits éléments entrecroisés (5, 6, 7, 8) étant conçus comme des éléments télescopiques et étant respectivement pourvus de première et seconde parties (5a, 5b ; 6a, 6b ; 7a, 7b ; 8a, 8b) aptes à effectuer des coulissements mutuels télescopiques, tous les éléments entrecroisés (5, 6, 7, 8) étant conçus sous la forme d'éléments télescopiques, et le mécanisme élévateur (4) à croisillons comptant au moins quatre éléments entrecroisés (5, 6, 7, 8), caractérisée par le fait que deux éléments entrecroisés (5, 7 ; 6, 8) respectifs sont agencés en superposition ; que deux éléments entrecroisés (5, 6 ; 7, 8) respectifs présentent un axe commun de rotation (56 ; 78) dans une zone d'intersection ; que chaque élément entrecroisé (5, 6, 7, 8) est monté à rotation, par l'intermédiaire de la seconde partie (5b, 6b, 7b, 8b) dudit élément, en un point de fixation (2a, 2d, 3a, 3k) incluant un axe de rotation (5f, 6f, 7f, 8f) ; que deux premières parties respectives (5a, 6a, 7a, 8a) des éléments entrecroisés sont reliées l'une à l'autre avec faculté de rotation, par l'intermédiaire d'un axe commun de rotation (57 ; 68) ; que le tronçon des première et seconde parties (5a, 5b ; 6a, 6b ; 7a, 7b ; 8a, 8b) desdits éléments entrecroisés, apte à effectuer des coulissements mutuels télescopiques, est notamment interposé entre l'axe commun de rotation (56 ; 78) et les points de fixation (2a, 2d, 3a, 3k) ; qu'un moyen de liaison (5g, 6g, 7g, 8g), situé audits points de fixation (2a, 2d, 3a, 3k), est relié à la première partie (5a, 6a, 7a, 8a) des éléments entrecroisés afin de transmettre, en particulier, des forces de poussée entre lesdits points de fixation (2a, 2d, 3a, 3k) et les premières parties (5a, 6a, 7a, 8a) desdits éléments entrecroisés ; et que ledit moyen de liaison (5g, 6g, 7g, 8g) est conçu sous la forme d'une tige reliée, par l'intermédiaire d'un axe de rotation (5h, 6h, 7h, 8h), à ladite première partie (5a, 6a, 7a, 8a) des éléments entrecroisés.
  2. Plate-forme de levage selon la revendication 1, caractérisée par le fait que la tige est montée à rotation et à coulissement dans la région du point de fixation (3a),
  3. Plate-forme de levage selon l'une des revendications précédentes, caractérisée par le fait qu'au moins l'un des points de fixation (2a, 2d, 3a, 3k) fait partie intégrante d'un palier de glissement (2e).
  4. Plate-forme de levage selon l'une des revendications 1 ou 2, caractérisée par le fait qu'une roue (3b) est en liaison rotative avec le point de fixation (3a, 3k) sur la seconde partie (5b ,6b) des éléments entrecroisés.
  5. Plate-forme de levage selon l'une des revendications précédentes, caractérisée par le fait qu'un dispositif activable d'entraînement (10, 11, 12) est en prise avec au moins l'un des axes communs de rotation (56, 57, 68, 78), en vue de régler la hauteur du mécanisme élévateur à croisillons.
  6. Plate-forme de levage selon l'une des revendications précédentes, caractérisée par le fait que le plateau (2) est relié aux secondes parties (7b, 8b) des éléments entrecroisés, par l'intermédiaire de points de fixation (2a, 2d).
  7. Plate-forme de levage selon la revendication 6, caractérisée par le fait que le plateau (2) est relié au point de fixation (2d) par l'intermédiaire d'un palier de glissement (2e).
  8. Plate-forme de levage (1) selon l'une des revendications précédentes, caractérisée par le fait qu'un cadre inférieur (3) comporte des points de fixation (3a, 3k) ; et par le fait qu'au moins une roue (3b) est fixée audit cadre inférieur (3) afin de procurer un appui sur une structure sous-jacente, en vue d'imprimer des coulissements à ladite plate-forme de levage (1).
  9. Plate-forme de levage (1) selon la revendication 8, caractérisée par le fait que la roue (3b) est disposée dans l'une des régions extrêmes du cadre inférieur (3) ; et par le fait que ledit cadre inférieur (3) présente, dans l'autre région extrême, une poignée (3e) agencée de façon telle que ledit cadre inférieur (3) puisse être tiré ou poussé.
  10. Plate-forme de levage (1) selon l'une des revendications 8 à 9, caractérisée par le fait que le cadre inférieur (3) se compose de deux cadres partiels (3k) dont la liaison mutuelle est instaurée uniquement par l'intermédiaire des éléments entrecroisés (5, 6).
  11. Plate-forme de levage (1) selon la revendication 10, caractérisée par le fait qu'une roue (3b) est fixée à chaque cadre partiel (3k) afin de procurer un appui sur une structure sous-jacente, en vue d'imprimer des coulissements à ladite plate-forme de levage (1).
  12. Plate-forme de levage (1) selon l'une des revendications 6 à 11, caractérisée par le fait que les éléments entrecroisés (5, 6, 7, 8) comportent un dispositif d'entraînement, en particulier un dispositif hydropneumatique agencé de façon telle que les première et seconde parties (5a, 5b ; 6a, 6b ; 7a, 7b ; 8a, 8b) desdits éléments entrecroisés puissent être animées de coulissements réciproques par faculté de commande active.
  13. Plate-forme de levage (1) selon l'une des revendications 6 à 12, caractérisée par le fait que les éléments entrecroisés (5, 6, 7, 8), les axes communs de rotation (56, 57, 68, 78), et les axes de rotation (2a, 3a) situés sur le cadre inférieur (3) et sur le plateau (2), sont conçus et mutuellement agencés de façon telle que lesdits éléments entrecroisés (5, 6, 7, 8) s'étendent avec parallélisme réciproque, ou pour l'essentiel parallèlement, à l'état rentré du mécanisme élévateur (4) à croisillons.
  14. Plate-forme de levage (1) selon l'une des revendications précédentes, caractérisée par le fait que cette dernière compte deux mécanismes élévateurs (4) à croisillons ; et par le fait que le plateau (2) est interposé entre lesdits mécanismes élévateurs (4) à croisillons.
EP09807943A 2008-08-20 2009-08-20 Plate-forme de levage Not-in-force EP2318301B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09807943A EP2318301B1 (fr) 2008-08-20 2009-08-20 Plate-forme de levage

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP08162712A EP2157042A1 (fr) 2008-08-20 2008-08-20 Elévateur
PCT/EP2009/060761 WO2010020670A1 (fr) 2008-08-20 2009-08-20 Plate-forme de levage
EP09807943A EP2318301B1 (fr) 2008-08-20 2009-08-20 Plate-forme de levage

Publications (2)

Publication Number Publication Date
EP2318301A1 EP2318301A1 (fr) 2011-05-11
EP2318301B1 true EP2318301B1 (fr) 2012-07-25

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EP08162712A Withdrawn EP2157042A1 (fr) 2008-08-20 2008-08-20 Elévateur
EP09807943A Not-in-force EP2318301B1 (fr) 2008-08-20 2009-08-20 Plate-forme de levage

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EP08162712A Withdrawn EP2157042A1 (fr) 2008-08-20 2008-08-20 Elévateur

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EP (2) EP2157042A1 (fr)
DK (1) DK2318301T3 (fr)
WO (1) WO2010020670A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105544957B (zh) * 2016-01-28 2017-12-22 安徽马钢工程技术集团有限公司 一种用于水平架空管道施工的活动脚手架及其施工方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2084543B (en) * 1980-10-02 1985-06-26 Kishi Mitsuhiro Elevating platforms
JPS60118599A (ja) * 1983-11-29 1985-06-26 株式会社彦間製作所 高所昇降装置
NL9001309A (nl) * 1990-06-08 1992-01-02 Jean Marie Leonardus Willems Schaarinrichting alsmede van dergelijke schaarinrichtingen voorziene hefinrichting.
JPH0825717B2 (ja) * 1991-08-30 1996-03-13 株式会社ジャパニック 昇降装置の同期機構
US5390760A (en) 1994-04-12 1995-02-21 Upright, Inc. Safety guard for scissor lift
DE19643177C1 (de) * 1996-10-18 1998-04-02 Joachim De Haar Scherenhubwagen
DE202004007438U1 (de) * 2004-05-04 2005-09-15 Kd Gmbh Sondermaschb Scherenhubtisch
KR100674217B1 (ko) * 2005-09-08 2007-01-24 하태홍 변속장치가 구비된 유체 펌핑용 실린더 장치
US20070187184A1 (en) 2006-02-10 2007-08-16 Nasuti Michelle L Scissors lift utility tray assembly

Also Published As

Publication number Publication date
EP2318301A1 (fr) 2011-05-11
EP2157042A1 (fr) 2010-02-24
DK2318301T3 (da) 2012-10-29
WO2010020670A1 (fr) 2010-02-25

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