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EP1644280A2 - Lift - Google Patents

Lift

Info

Publication number
EP1644280A2
EP1644280A2 EP04767526A EP04767526A EP1644280A2 EP 1644280 A2 EP1644280 A2 EP 1644280A2 EP 04767526 A EP04767526 A EP 04767526A EP 04767526 A EP04767526 A EP 04767526A EP 1644280 A2 EP1644280 A2 EP 1644280A2
Authority
EP
European Patent Office
Prior art keywords
platform
axis
arm
cage
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.)
Granted
Application number
EP04767526A
Other languages
German (de)
French (fr)
Other versions
EP1644280B1 (en
Inventor
Alain Bourgeois
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1644280A2 publication Critical patent/EP1644280A2/en
Application granted granted Critical
Publication of EP1644280B1 publication Critical patent/EP1644280B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/06—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces
    • B66B9/08—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons
    • B66B9/0861—Hanging lifts, e.g. rope suspended seat or platform
    • 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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065—Scissor linkages, i.e. X-configuration
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18168—Crank, lazy-tong, and slide

Definitions

  • the present invention relates to an elevator intended to transport people between a lower level and an upper level, particularly intended to be installed in dwellings to facilitate access to the floor of users whose mobility is reduced such as disabled people. elderly for example.
  • elevators are well known comprising a cabin or a horizontal platform capable of being translated vertically in a vertical cage from a lower level to an upper level and vice versa by actuating means; this is the case, for example, of French patent FR 2,584,694 describing a hydraulic lift with a cabin.
  • the hydraulic elevator comprises a cabin which is connected, by means of support and return pulleys, with a hydraulic cylinder displaceable in the direction of travel of the cabin, said cabin being able to be raised and lowered by the '' supply and discharge of a working liquid.
  • the working liquid is supplied to the hydraulic cylinder by means of a pump driven by a motor.
  • the piston rod of the hydraulic cylinder fixedly anchored with its upper end, which can come out under the effect of weightlessness to raise the cabin, is connected at its end to a pulley guiding the anchored support means of fixedly at one end and anchored to the cabin at the other end.
  • the two arms of a pair are pivotally mounted along an axis which supports a connecting rod, pivotally connected to the ends of the two hydraulic cylinders serving as actuating member, along an axis offset from its mounting axis, which can rotate 90 ° between a generally horizontal position and a position where it will be locked in rotation.
  • the connecting rod is advantageously provided with rollers so that these allow a rapid rise of the axis of rotation which links the two arms of a pair together, when the lifting frame is in the base position.
  • the existence of the rod itself also allows, thanks to its rotation, by reduction, a rapid rise of the axis of rotation which connects the two arms of a pair between them.
  • This type of elevator has the disadvantage of require to implement wholesale and earthworks • the • bottom of the cage to achieve cuvette- below the lower level. to accommodate the hydrostatic drive device, which considerably increases the costs of installing such a lift. Otherwise, the elevator platform cannot be flush with the ground level when the elevator is in the lower position, the arms and the actuating member being arranged below the platform.
  • One of the aims of the invention is therefore to remedy this drawback by proposing an elevator of simple and inexpensive design avoiding the production of a bowl at the bottom of the elevator cage.
  • an elevator is proposed between a lower level and a level comprising a substantially horizontal cabin or platform capable of being vertically translated into a vertical cage from the lower level to the level upper and vice versa, by actuation means positioned under the remarkable platform in that said actuation means comprise on the one hand at least a pair of arms mounted in scissors, that is to say articulated around 'an axis in their middle part, the free ends of a first arm of a pair being articulated around a fixed axis secured to the cage and respectively to the platform around an axis sliding along the one of the lateral edges of the platform and the free ends of the second arm being articulated around a fixed axis integral with the.
  • the actuating member preferably consists of a jack whose body is integral with the cage and whose rod is articulated to a connecting rod articulated to one of the arms of the pair in such a way that the axes of articulation from the connecting rod to the rod of the jack, from the connecting rod to the first arm and from said first arm to the cage is never aligned.
  • the cage consists of a framework comprising two rear uprights, two lower side members and rear crosspieces, the free ends of the first arm of a pair being articulated around a fixed axis integral with the rear end of the lower side members and respectively to the platform around an axis sliding along one of the lateral edges of the platform and the free ends of the second arm being articulated around a fixed axis secured to the lateral edge of the platform and respectively to said lower spar about a sliding axis along a longitudinal lumen formed in said spar.
  • one of the arms of each pair of arms consists of two segments, a first segment and a second segment extending linearly and in parallel in two 1 Segregated vertical planes, 'said segments being interconnected by a fixed pin secured to the respective free ends of first and second segments and passing through the first pair of arms.
  • FIG. 1 is a perspective view of the elevator according to the invention
  • - Figure 2 is a vertical sectional view of the elevator according to the invention, the platform being at the upper level
  • - Figure 3 is a vertical sectional view of the elevator according to the invention, the flat -form being at the lower level
  • - Figure 4 is a schematic representation from above of the elevator according to the invention.
  • the elevator according to the invention between a lower level and an upper level of a dwelling comprises a substantially horizontal platform 1 capable of being vertically translated into a vertical cage 2 from the lower level 3 up to the upper level 4 and vice versa by actuating means positioned under said platform 1.
  • the cage 2 consists of a frame 5 comprising two front uprights 6a and two rear uprights 6b, two lower side members 7,7 'and front crosspieces 8a and two rear crosspieces 8b.
  • the lower beams 7, 7 'of the cage 2 extend above the lower level 3 of the dwelling in order to increase the vertical clearance of the platform 1 as will be detailed below.
  • the horizontal platform 1 consists of a generally rectangular plate 9 comprising on its lateral edges and on its rear transverse edge of the guardrails 10 conventionally constituted by uprights and side members forming guard rails. body .
  • the elevator also comprises two pairs of arms 11 and 12 mounted in scissors, that is to say a pair of arms articulated around an axis in their middle part, respectively articulated on the lateral edges of the platform. -form 1.
  • the free ends of the first arm 11a of a pair 11 are articulated around a fixed axis 13 secured to the rear end of the lower spar 7 of the frame 5 of the cage 2 and respectively to the platform- form 1 around an axis 14 sliding along one of the lateral edges of said platform 1 through a longitudinal slot 15.
  • the free ends of the second arm 11b are articulated around a fixed axis 16 secured to the edge lateral of the platform 1 and respectively in the middle part of the lower spar 7 of the frame 5 of the cage 2 around an axis 17 sliding through a longitudinal slot 18 formed in the middle part of said lower spar 7.
  • the elevator further comprises a jack 19 which is powered by a hydraulic motor, not shown in the figures, so as to actuate said platform 1.
  • This jack 19 extends vertically along the rear upright 6a of the frame 5 of the cage 2, above the lower spar 7, and the rod 20 of said cylinder 19 is articulated to a connecting rod 21 articulated to the first arm 11a of the pair between the articulation of said first arm 11a around the axis fixed 13 secured to the rear end of the lower spar 7 of the frame 5 of the cage 2 and the articulation axis of the first and second arms 11a and 11b mounted in scissors so that the articulation axes of the connecting rod 21 to the rod 20 of the jack 19, of the connecting rod 21 to the first arm and of said first arm 11a to the cage 2 are never aligned.
  • the vertical translation of the rod 20 of the jack 19 drives the rotation of the first arm from a first position where said second arm extends above the lower side members 1 -1 ′ of the frame 5 of the cage 2 to a second lower position where said first arm 11a extends below said lower beams 7, 7 'thus providing the translation of the platform 1 from a first position where it extends to the upper floor 4 of the dwelling to a second position where it extends to the lower stage 3 under the lower longitudinal members 7.7 ′ of the framework 5 of the cage 2.
  • the lower position of the platform 1 can be confused with the plane of the longitudinal members 7.7 'lower of the frame 5 of the cage 2 without departing from the scope of the invention.
  • the second arm 11b for example, consists of two segments, a first segment 11 'bs' extending from the lower spar 7 to the first arm 11b of the pair 11 and a second segment 11 "bs 'extending from the first arm 11a of the pair 11 to the platform 1.
  • the free ends of the arms 11b of the first pair 11 of arms are joined to the respective free ends of the arms 12b of the second pair 12 of arms by a bar link 23 so that the rotation of the first arm 11a of the first pair 11 provided by 1 actuation of the jack 19 simultaneously causes the rotation of the first arm 12a ⁇ of the second pair 12.
  • the arms 11a and 12a of the pairs 11 and 12 protrude from the rear of the platform 1 to allow the passage of the connecting bar 23 behind the platform when it is moved from the lower level 3 to the upper level 4 and vice versa, said connecting bar 23 extending in the plane of the platform -form 1 when the latter is located at the lower side members 7,7 'of the frame 5.
  • the elevator comprises at the upper level 4 a door 24 pivoting around hinges 25 integral with the front uprights of the frame 5 of the cage 2 so that said gate 24 is closed, preventing access to the cage 2, when the platform 1 is located at the lower level 3 in order to prevent any fall from the higher level 4.
  • the vertical movement of the platform 1 in the cage 2 is not linear but slightly curved so that, when said platform 1 is located at the lower level 3 or at the upper level 4, said platform 1 is separated from the floor of the lower level 3 or higher by a space.
  • the front edge of the platform 1 advantageously comprises a retractable flap 26, prestressed by elastic means and able to slide along rails 27 positioned under said platform 1 in order to fill said space.
  • the jack 9 may be replaced by any other actuating member well known to those skilled in the art without departing from the scope of the invention, the hinge axis of the actuating member to the arm 11a and the articulation axis of said arm 11a to the cage 2 never having to be aligned vertically.
  • the means for actuating said horizontal platform cannot understand .

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Types And Forms Of Lifts (AREA)
  • Valve Device For Special Equipments (AREA)
  • Magnetic Heads (AREA)
  • Jib Cranes (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Elevator Door Apparatuses (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

A lift between lower and upper levels of a house includes a cabin and an essentially horizontal platform which is essentially vertically movable by actuating elements arranged thereunder. The actuating elements include at least one pair of rotatably mounted arms pivotally arranged around an axis in the middle part thereof. The free ends of the first arm of one pair are pivotable around a fixed axis and respectively around an axis sliding along the platform. The free ends of the second arm are pivotable around a fixed axis connected to the platform and respectively around a sliding axis. An actuating unit interacts with at least one of the arms such that the pivot axis of the second arm for the platform, the middle pivot axis of the arms of the pair and the pivot axis of the first arm are never aligned.

Description

ELEVATEUR LIFT
La présente invention a pour objet un élévateur destiné à transporter des personnes entre un niveau inférieur et un niveau supérieur particulièrement destiné à être installé dans des habitations pour faciliter l'accès à l'étage des utilisateurs dont la mobilité est réduite telle que des personnes handicapées âgées par exemple. Dans ce domaine, on connaît bien des élévateurs comprenant une cabine ou une plate-forme horizontale apte à être translatée verticalement dans une cage verticale depuis un niveau inférieur jusqu'à un niveau supérieur et inversement par des moyens d'actionnement ; c'est le cas, par exemple, du brevet français FR 2.584.694 décrivant un ascenseur hydraulique avec une cabine. L'ascenseur hydraulique comporte une cabine qui est en liaison, par l'intermédiaire des moyens de support et de poulies de renvoi, avec un cylindre hydraulique déplaçable dans la direction de la course de la cabine, ladite cabine pouvant être montée et descendue par l'amenée et l'évacuation d'un liquide de travail. L'amenée du liquide de travail au cylindrique hydraulique s'effectue au moyen d'une pompe entraînée par un moteur. Ainsi, la tige de piston du cylindre hydraulique ancrée de façon fixe avec son extrémité supérieure, qui peut sortir sous l'effet de l'apesanteur pour faire monter la cabine, est reliée à son extrémité à une poulie guidant le moyen de support ancré de façon fixe à l'une de ses extrémités et ancré sur la cabine à son autre extrémité. Bien que les moyens d'actionnement de ce type d'élévateur présente un volume limité, l'installation de ce type d'élévateur nécessite des travaux de gros œuvre dans l'habitation qui grèvent considérablement de coût de pose de ce type d'élévateur. On connaît, par ailleurs, des élévateurs dits hydrauliques dont la cabine est en liaison avec le piston d'un cylindre hydraulique afin de monter et descendre ladite cabine par l'amenée et respectivement l'évacuation d'un liquide de travail au cylindre hydraulique ; c'est le cas, par exemple, du brevet allemand DE 3.136.739. Le cylindre hydraulique est en liaison, par l'intermédiaire d'une pompe, avec un accumulateur de pression conçu sous forme de cylindre, dont le piston est chargé par un contrepoids à travers la tige du piston. On observera ainsi que la longueur du cylindre hydraulique correspond à la course maximale de la cabine de sorte que la hauteur d'élévation de la cabine est particulièrement limitée. Afin de remédier à cet inconvénient, on a déjà imaginé des dispositifs d'entraînement hydrostatiques permettant de grandes longueurs de course. C'est le cas, par exemple, du brevet européen EP 0.374.500 décrivant un système élévateur à ciseaux, utilisable notamment dans les garages pour lever des véhicules, comportant deux paires de bras montés en ciseaux, l'une des extrémités libres d'un bras d'une paire étant articulée autour d'un axe fixe solidaire du sol, l'autre extrémité étant articulée autour d'un axe coulissant le long de l'un des bords latéraux du châssis élévateur, l'autre bras ayant une extrémité articulée autour d'un axe fixe solidaire du bord latéral du châssis élévateur, et son autre extrémité articulée autour d'un axe coulissant le long du sol. Les deux bras d'une paire sont montés de manière pivotante selon un axe qui supporte une bielle, reliée de manière pivotante aux extrémités des deux vérins hydrauliques servant d' organe d'actionnement, selon un axe excentré de son axe de montage, pouvant tourner de 90° entre une position globalement horizontale et une position où elle sera bloquée en rotation. La bielle est avantageusement munie de roulettes afin que celles-ci permettent une montée rapide de l'axe de rotation qui lie les deux bras d'une paire entre eux, lorsque le châssis élévateur est en position base. De plus, l'existence de la bielle elle-même permet également, grâce à sa rotation, par démultiplication, une montée rapide de l'axe de rotation qui lie les deux bras d'une paire entre eux. Ce type d'élévateur présente l'inconvénient de nécessiter des travaux de gros œuvre et de • terrassement au •fond de la cage pour réaliser une cuvette- située sous le niveau inférieur pour . accueillir- le dispositif d'entraînement hydrostatique, ce qui grève considérablement les coûts de pose de tels élévateur. A défaut, la plateforme de l'élévateur ne peut affleurer le niveau du sol lorsque l'élévateur est en position inférieure, les bras et l'organe d'actionnement étant disposés en dessous de la plate-forme. L'un des buts de l'invention est donc de remédier à cet inconvénient en proposant un élévateur de conception simple et peu onéreuse évitant la réalisation d'une cuvette au fond de la cage de l'élévateur. A cet effet, et conformément à l'invention, il est proposé un élévateur entre un niveau inférieur et un niveau comprenant une cabine ou une plate-forme sensiblement horizontale apte à être translatée verticalement dans une cage verticale depuis le niveau inférieur jusqu'au niveau supérieur et inversement, par des moyens d'actionnement positionnés sous la plate-forme remarquable en ce que lesdits moyens d'actionnement comprennent d'une part au moins une paire de bras montés en ciseaux, c'est-à-dire articulés autour d'un axe dans leur partie médiane, les extrémités libres d'un premier bras d'une paire étant articulées autour d'un axe fixe solidaire de la cage et respectivement à la plate-forme autour d'un axe coulissant le long de l'un des bords latéraux de la plate-forme et les extrémités libres du second bras étant articulées autour d'un axe fixe solidaire du. bord latéral de ladite plate- forme et respectivement à la cage autour d'un axe coulissant, de telle sorte que l'axe d'articulation du second bras à la plate-forme, l'axe médian d'articulation des bras d'une paire et l'axe d'articulation du premier bras à la cage ne soient jamais alignés, et d'autre part un organe d'actionnement coopérant avec au moins l'un des bras, l' actionnement dudit organe procurant la rotation du premier bras depuis une première position où ledit second bras s'étend au dessus de l'axe coulissant jusqu'à une seconde position inférieure où ledit premier bras s'étend en dessous dudit axe coulissant, assurant ainsi la translation de la' plate-forme depuis une. première position où elle s'étend au niveau supérieur de l'habitation jusqu'à une seconde position où elle s'étend au niveau inférieur sous ledit axe coulissant, et inversement. L'organe d'actionnement consiste, de préférence, en un vérin dont le corps est solidaire de la cage et dont la tige est articulée à une bielle articulée à l'un des bras de la paire de telle manière que les axes d'articulation de la bielle à la tige du vérin, de la bielle au premier bras et dudit premier bras à la cage ne soit jamais alignés. Par ailleurs, et de manière particulièrement avantageuse, la cage est constituée d'une ossature comprenant deux montants arrières, deux longerons inférieurs et des traverses arrières, les extrémités libres du premier bras d'une paire étant articulées autour d'un axe fixe solidaire de l'extrémité arrière des longerons inférieurs et respectivement au plateau autour d'un axe coulissant le long de l'un des bords latéraux de la plateforme et les extrémités libres du second bras étant articulées autour d'un axe fixe solidaire du bord latéral de la plate-forme et respectivement audit longeron inférieur autour d'un axe coulissant le long d'une lumière longitudinale pratiquée dans ledit longeron. On comprend bien que, contrairement aux dispositifs de l'art antérieur, où la tige du dispositif d'entraînement hydrostatique est solidaire de la paroi inférieure de la cabine, en appui sur le sol sous le niveau inférieur, le vérin permettant d'entraîner la plate-forme depuis le2 niveau inférieur jusqu'au niveau supérieur et inversement s'étend au dessus dudit niveau inférieur de sorte que la pose d'un tel élévateur dans une habitation ne nécessite pas de travaux de terrassement pour la réalisation d'une cuvette. De manière particulièrement avantageuse, l'un des bras de chaque paire de bras est constitué de deux segments, un premier segment et un second segment s ' étendant linéairement et parallèlement dans deux1 plans verticaux distincts, ' lesdits segments étant reliés par un axe fixe solidaire des extrémités libres respectives des premier et second segments et traversant le premier bras de la paire. D'autres avantages et caractéristiques ressortiront mieux de la description qui va suivre de l'élévateur conforme à l'invention en référence aux dessins annexés sur lesquels : - la figure 1 est une vue en perspective de l'élévateur conforme à l'invention, - la figure 2 est une vue en coupe verticale de l'élévateur conforme à l'invention, la plate-forme étant au niveau supérieur, - la figure 3 est une vue en coupe verticale de l'élévateur suivant l'invention, la plate-forme étant au niveau inférieur, - la figure 4 est une représentation schématique de dessus de l'élévateur suivant l'invention. En référence aux figures 1 à 3, l'élévateur suivant l'invention entre un niveau inférieur et un niveau supérieur d'une habitation comprend une plate-forme sensiblement horizontale 1 apte à être translatée verticalement dans une cage verticale 2 depuis le niveau inférieur 3 jusqu'au niveau supérieur 4 et inversement par des moyens d'actionnement positionnés sous ladite plateforme 1. La cage 2 est constituée d'une ossature 5 comprenant deux montants avants 6a et deux montants arrières 6b, deux longerons inférieurs 7,7' et des traverses avants 8a et deux traverses arrières 8b. Les longerons inférieurs 7,7' de la cage 2 s'étendent au dessus du niveau inférieur 3 de l'habitation afin d'augmenter le débattement vertical de la plate-forme 1 comme il sera détaillé plus loin. La plate-forme horizontale 1 est constituée d'un plateau globalement rectangulaire 9 comprenant sur ses bords latéraux et sur son bord transversal arrière des rambardes 10 classiquement constituées de montants et de longerons formant des garde- corps . L'élévateur comprend, par ailleurs, deux paires de bras 11 et 12 montés en ciseaux, c'est-à-dire une paire de bras articulés autour d'un axe dans leur partie médiane, respectivement articulés sur les bords latéraux de la plate-forme 1. Les extrémités libres du premier bras lia d'une paire 11 sont articulés autour d'un axe fixe 13 solidaire de l'extrémité arrière du longeron inférieur 7 de l'ossature 5 de la cage 2 et respectivement à la plate- forme 1 autour d'un axe 14 coulissant le long de l'un des bords latéraux de ladite plate-forme 1 à travers une lumière longitudinale 15. Les extrémités libres du second bras 11b sont articulées autour d'un axe fixe 16 solidaire du bord latéral de la plate-forme 1 et respectivement dans la partie médiane du longeron inférieur 7 de l'ossature 5 de la cage 2 autour d'un axe 17 coulissant à travers une lumière longitudinale 18 pratiquée dans la partie médiane dudit longeron inférieur 7. On notera que, les paires de bras 11 et 12 étant articulées sur les bords latéraux de la plate-forme 1, l'espace situé sous cette dernière est entièrement libre, ce qui permet à ladite plate-forme 1 de s'étendre au niveau inférieur 3 sans que des travaux de terrassement soient nécessaires. L'élévateur comprend, par ailleurs, un vérin 19 qui est alimenté par un moteur hydraulique, non représenté sur les figures, de manière à actionner ladite plate-forme 1. Ce vérin 19 s'étend verticalement le long du montant arrière 6a de l'ossature 5 de la cage 2, au-dessus du longeron inférieur 7, et la tige 20 dudit vérin 19 est articulée à une bielle 21 articulée au premier bras lia de la paire entre l'articulation dudit premier bras lia autour de l'axe fixe 13 solidaire de l'extrémité arrière du longeron inférieur 7 de l'ossature 5 de la cage 2 et l'axe d'articulation des premier et second bras lia et 11b montés en ciseaux de sorte que les axes d'articulation de la bielle 21 à la tige 20 du vérin 19, de la bielle 21 au premier bras et dudit premier bras lia à la cage 2 ne soient jamais alignés. Ainsi, la translation verticale de la tige 20 du vérin 19 entraîne la rotation du premier bras depuis une première position où ledit second bras s'étend au dessus des longerons inférieurs 1 -1 ' de l'ossature 5 de la cage 2 jusqu'à une seconde position inférieure où ledit premier bras lia s'étend en dessous desdits longerons inférieurs 7,7' procurant ainsi la translation de la plateforme 1 depuis une première position où elle s'étend à l'étage supérieur 4 de l'habitation jusqu'à une seconde position où elle s'étend à l'étage inférieur 3 sous les longerons inférieurs 7,7' de l'ossature 5 de la cage 2. Il va de soi que la position inférieure de la plateforme 1 peut être confondue avec le plan des longerons 7,7' inférieurs de l'ossature 5 de la cage 2 sans pour autant sortir du cadre de l'invention. Néanmoins, on comprend bien que pour un même débattement vertical de la plate-forme 1, il conviendra de prévoir un vérin 19 dont le débattement de la tige 20 est plus important. En référence à la figure 4, on observera que l'un des bras de chaque paire de bras 11,12 montés en ciseaux, le second bras 11b par exemple, est constitué de deux segments, un premier segment 11 'b s 'étendant depuis le longeron inférieur 7 jusqu'au premier bras 11b de la paire 11 et un second segment 11 "b s 'étendant depuis le premier bras lia de la paire 11 jusqu'à la plate-forme 1. Ces segments 11 'b et 11 "b s'étendent linéairement et parallèlement dans deux plans verticaux distincts et sont reliés par un axe fixe 22 solidaire des extrémités libres respectives des premier et second segments 11 'b, 11 "b et traversant le premier bras lia de la paire 11. Ainsi, les premier et second segments 11 'b et ll"b sont articulés autour d'un axe 2 traversent le premier bras lia. Selon une variante d'exécution particulièrement avantageuse, représentée en traits pointillés sur la figure 4, les extrémités libres des bras 11b de la première paire 11 de bras sont solidarisées aux extrémités libres respectives des bras 12b de la seconde paire 12 de bras par une barre de liaison 23 de telle manière que la rotation du premier bras lia de la première paire 11 procurée par 1 ' actionnement du vérin 19 entraîne ' simultanément la rotation du premier bras 12a^ de la seconde paire 12. A cet égard, on notera que les bras lia et 12a des paires 11 et 12 font saillie à l'arrière de la plate-forme 1 afin de permettre le passage de la barre de liaison 23 derrière la plate-forme lorsqu'elle est déplacée depuis le niveau inférieur 3 jusqu'au niveau supérieur 4 et inversement, ladite barre de liaison 23 s 'étendant dans le plan de la plate-forme 1 lorsque cette dernière se situe au niveau des longerons inférieurs 7,7' de l'ossature 5. Accessoirement, en référence à la figure 1, l'élévateur comporte au niveau supérieur 4 un portillon 24 pivotant autour de charnières 25 solidaires des montants avants de l'ossature 5 de la cage 2 de telle manière que ledit portillon 24 soit fermé, empêchant l'accès à la cage 2, lorsque la plate-forme 1 se situe au niveau inférieur 3 afin d'empêcher toute chute depuis le niveau supérieur 4. On observera que le déplacement vertical de la plate- forme 1 dans la cage 2 n'est pas linéaire mais légèrement courbe de sorte que, lorsque ladite plate-forme 1 se situe au niveau inférieur 3 ou au niveau supérieur 4, ladite plate-forme 1 est séparée du plancher du niveau inférieur 3 ou supérieur par un espace. Afin d'empêcher qu'un utilisateur ne se coince le pied dans cet espace et ne se blesse, le bord avant de la plate-forme 1 comprend avantageusement une bavette 26 rétractable, précontrainte par des moyens élastiques et apte à coulisser le long de rails 27 positionnés sous ladite plate-forme 1 afin de combler ledit espace. Il va de soi que le vérin 9 pourra être substitué par tout autre organe d'actionnement bien connu de l'homme de l'art sans sortir du cadre de l'invention, l'axe d'articulation de l'organe d'actionnement au bras lia et l'axe d'articulation dudit bras lia à la cage 2 ne devant alors jamais être aligné verticalement. Par ailleurs, il va de soi que les moyens d'actionnement de ladite plate-forme horizontale peuvent ne comprendre . qu'une .paire de bras montés en ciseaux, - les extrémités libre d'un premier bras d'une, paire étant articulé autour d'un axe fixe solidaire de la cage et respectivement au plateau autour d'un axe coulissant et les extrémités libre du second bras étant articulées autour d'un axe fixe solidaire de ladite plate-forme et respectivement à l'ossature de la cage autour d'un axe coulissant . Enfin, il va de soi que la plate-forme horizontale de l'élévateur pourra être substituée par une cabine et que les exemples que l'on vient de donner ne sont que des illustrations particulières en aucun cas limitatives quant au domaine d'application de l'invention. The present invention relates to an elevator intended to transport people between a lower level and an upper level, particularly intended to be installed in dwellings to facilitate access to the floor of users whose mobility is reduced such as disabled people. elderly for example. In this field, elevators are well known comprising a cabin or a horizontal platform capable of being translated vertically in a vertical cage from a lower level to an upper level and vice versa by actuating means; this is the case, for example, of French patent FR 2,584,694 describing a hydraulic lift with a cabin. The hydraulic elevator comprises a cabin which is connected, by means of support and return pulleys, with a hydraulic cylinder displaceable in the direction of travel of the cabin, said cabin being able to be raised and lowered by the '' supply and discharge of a working liquid. The working liquid is supplied to the hydraulic cylinder by means of a pump driven by a motor. Thus, the piston rod of the hydraulic cylinder fixedly anchored with its upper end, which can come out under the effect of weightlessness to raise the cabin, is connected at its end to a pulley guiding the anchored support means of fixedly at one end and anchored to the cabin at the other end. Although the means of actuation of this type of elevator has a limited volume, the installation of this type of elevator requires structural work in the dwelling which considerably increases the cost of installing this type of elevator. . Known, moreover, so-called hydraulic elevators whose cabin is in connection with the piston of a hydraulic cylinder in order to raise and lower said cabin by supplying and respectively discharging a working liquid to the hydraulic cylinder; it's the case, for example, of the German patent DE 3,136,739. The hydraulic cylinder is connected, by means of a pump, to a pressure accumulator designed in the form of a cylinder, the piston of which is loaded by a counterweight through the piston rod. It will thus be observed that the length of the hydraulic cylinder corresponds to the maximum stroke of the cabin so that the elevation height of the cabin is particularly limited. In order to remedy this drawback, hydrostatic drive devices have already been devised allowing long stroke lengths. This is the case, for example, of European patent EP 0,374,500 describing a scissor lift system, usable in particular in garages for lifting vehicles, comprising two pairs of arms mounted in scissors, one of the free ends of one arm of a pair being articulated around a fixed axis integral with the ground, the other end being articulated around a sliding axis along one of the lateral edges of the lifting frame, the other arm having one end articulated around a fixed axis secured to the lateral edge of the lifting frame, and its other end articulated around an axis sliding along the ground. The two arms of a pair are pivotally mounted along an axis which supports a connecting rod, pivotally connected to the ends of the two hydraulic cylinders serving as actuating member, along an axis offset from its mounting axis, which can rotate 90 ° between a generally horizontal position and a position where it will be locked in rotation. The connecting rod is advantageously provided with rollers so that these allow a rapid rise of the axis of rotation which links the two arms of a pair together, when the lifting frame is in the base position. In addition, the existence of the rod itself also allows, thanks to its rotation, by reduction, a rapid rise of the axis of rotation which connects the two arms of a pair between them. This type of elevator has the disadvantage of require to implement wholesale and earthworks • the • bottom of the cage to achieve cuvette- below the lower level. to accommodate the hydrostatic drive device, which considerably increases the costs of installing such a lift. Otherwise, the elevator platform cannot be flush with the ground level when the elevator is in the lower position, the arms and the actuating member being arranged below the platform. One of the aims of the invention is therefore to remedy this drawback by proposing an elevator of simple and inexpensive design avoiding the production of a bowl at the bottom of the elevator cage. To this end, and in accordance with the invention, an elevator is proposed between a lower level and a level comprising a substantially horizontal cabin or platform capable of being vertically translated into a vertical cage from the lower level to the level upper and vice versa, by actuation means positioned under the remarkable platform in that said actuation means comprise on the one hand at least a pair of arms mounted in scissors, that is to say articulated around 'an axis in their middle part, the free ends of a first arm of a pair being articulated around a fixed axis secured to the cage and respectively to the platform around an axis sliding along the one of the lateral edges of the platform and the free ends of the second arm being articulated around a fixed axis integral with the. lateral edge of said platform and respectively to the cage around a sliding axis, such that the axis of articulation of the second arm to the platform, the median axis of articulation of the arms of a pair and the axis of articulation of the first arm to the cage are never aligned, and on the other hand an actuating member cooperating with at least one of the arms, the actuation of said member providing the rotation of the first arm from a first position where said second arm extends above the sliding axis to a second lower position where said first arm extends below said sliding axis, thus ensuring the translation of the 'platform from a. first position where it extends to the upper level of the dwelling up to a second position where it extends to the lower level below said sliding axis, and vice versa. The actuating member preferably consists of a jack whose body is integral with the cage and whose rod is articulated to a connecting rod articulated to one of the arms of the pair in such a way that the axes of articulation from the connecting rod to the rod of the jack, from the connecting rod to the first arm and from said first arm to the cage is never aligned. Furthermore, and in a particularly advantageous manner, the cage consists of a framework comprising two rear uprights, two lower side members and rear crosspieces, the free ends of the first arm of a pair being articulated around a fixed axis integral with the rear end of the lower side members and respectively to the platform around an axis sliding along one of the lateral edges of the platform and the free ends of the second arm being articulated around a fixed axis secured to the lateral edge of the platform and respectively to said lower spar about a sliding axis along a longitudinal lumen formed in said spar. It will be understood that, unlike the devices of the prior art, where the rod of the hydrostatic drive device is integral with the lower wall of the cabin, bearing on the ground below the lower level, the jack making it possible to drive the platform from the 2 lower level to the upper level and vice versa extends above said lower level so that the installation of such an elevator in a dwelling does not require earthworks for the realization of a bowl . In a particularly advantageous manner, one of the arms of each pair of arms consists of two segments, a first segment and a second segment extending linearly and in parallel in two 1 Segregated vertical planes, 'said segments being interconnected by a fixed pin secured to the respective free ends of first and second segments and passing through the first pair of arms. Other advantages and characteristics will emerge more clearly from the description which follows of the elevator according to the invention with reference to the appended drawings in which: FIG. 1 is a perspective view of the elevator according to the invention, - Figure 2 is a vertical sectional view of the elevator according to the invention, the platform being at the upper level, - Figure 3 is a vertical sectional view of the elevator according to the invention, the flat -form being at the lower level, - Figure 4 is a schematic representation from above of the elevator according to the invention. Referring to Figures 1 to 3, the elevator according to the invention between a lower level and an upper level of a dwelling comprises a substantially horizontal platform 1 capable of being vertically translated into a vertical cage 2 from the lower level 3 up to the upper level 4 and vice versa by actuating means positioned under said platform 1. The cage 2 consists of a frame 5 comprising two front uprights 6a and two rear uprights 6b, two lower side members 7,7 'and front crosspieces 8a and two rear crosspieces 8b. The lower beams 7, 7 'of the cage 2 extend above the lower level 3 of the dwelling in order to increase the vertical clearance of the platform 1 as will be detailed below. The horizontal platform 1 consists of a generally rectangular plate 9 comprising on its lateral edges and on its rear transverse edge of the guardrails 10 conventionally constituted by uprights and side members forming guard rails. body . The elevator also comprises two pairs of arms 11 and 12 mounted in scissors, that is to say a pair of arms articulated around an axis in their middle part, respectively articulated on the lateral edges of the platform. -form 1. The free ends of the first arm 11a of a pair 11 are articulated around a fixed axis 13 secured to the rear end of the lower spar 7 of the frame 5 of the cage 2 and respectively to the platform- form 1 around an axis 14 sliding along one of the lateral edges of said platform 1 through a longitudinal slot 15. The free ends of the second arm 11b are articulated around a fixed axis 16 secured to the edge lateral of the platform 1 and respectively in the middle part of the lower spar 7 of the frame 5 of the cage 2 around an axis 17 sliding through a longitudinal slot 18 formed in the middle part of said lower spar 7. On note that, the pairs of arms 11 and 12 being articulated on the lateral edges of the platform 1, the space located under the latter is completely free, which allows said platform 1 to extend to the lower level 3 without earthworks are necessary. The elevator further comprises a jack 19 which is powered by a hydraulic motor, not shown in the figures, so as to actuate said platform 1. This jack 19 extends vertically along the rear upright 6a of the frame 5 of the cage 2, above the lower spar 7, and the rod 20 of said cylinder 19 is articulated to a connecting rod 21 articulated to the first arm 11a of the pair between the articulation of said first arm 11a around the axis fixed 13 secured to the rear end of the lower spar 7 of the frame 5 of the cage 2 and the articulation axis of the first and second arms 11a and 11b mounted in scissors so that the articulation axes of the connecting rod 21 to the rod 20 of the jack 19, of the connecting rod 21 to the first arm and of said first arm 11a to the cage 2 are never aligned. So the vertical translation of the rod 20 of the jack 19 drives the rotation of the first arm from a first position where said second arm extends above the lower side members 1 -1 ′ of the frame 5 of the cage 2 to a second lower position where said first arm 11a extends below said lower beams 7, 7 'thus providing the translation of the platform 1 from a first position where it extends to the upper floor 4 of the dwelling to a second position where it extends to the lower stage 3 under the lower longitudinal members 7.7 ′ of the framework 5 of the cage 2. It goes without saying that the lower position of the platform 1 can be confused with the plane of the longitudinal members 7.7 'lower of the frame 5 of the cage 2 without departing from the scope of the invention. However, it is clear that for the same vertical movement of the platform 1, it will be necessary to provide a jack 19 whose movement of the rod 20 is greater. With reference to FIG. 4, it will be observed that one of the arms of each pair of arms 11, 12 mounted in scissors, the second arm 11b for example, consists of two segments, a first segment 11 'bs' extending from the lower spar 7 to the first arm 11b of the pair 11 and a second segment 11 "bs 'extending from the first arm 11a of the pair 11 to the platform 1. These segments 11' b and 11" b s 'extend linearly and parallel in two separate vertical planes and are connected by a fixed axis 22 integral with the respective free ends of the first and second segments 11' b, 11 "b and crossing the first arm 11a of the pair 11. Thus, the first and second segments 11 'b and 11 "b are articulated around an axis 2 pass through the first arm 11a. According to a particularly advantageous variant, shown in dotted lines in FIG. 4, the free ends of the arms 11b of the first pair 11 of arms are joined to the respective free ends of the arms 12b of the second pair 12 of arms by a bar link 23 so that the rotation of the first arm 11a of the first pair 11 provided by 1 actuation of the jack 19 simultaneously causes the rotation of the first arm 12a ^ of the second pair 12. In this regard, it will be noted that the arms 11a and 12a of the pairs 11 and 12 protrude from the rear of the platform 1 to allow the passage of the connecting bar 23 behind the platform when it is moved from the lower level 3 to the upper level 4 and vice versa, said connecting bar 23 extending in the plane of the platform -form 1 when the latter is located at the lower side members 7,7 'of the frame 5. Incidentally, with reference to FIG. 1, the elevator comprises at the upper level 4 a door 24 pivoting around hinges 25 integral with the front uprights of the frame 5 of the cage 2 so that said gate 24 is closed, preventing access to the cage 2, when the platform 1 is located at the lower level 3 in order to prevent any fall from the higher level 4. We will observe that the vertical movement of the platform 1 in the cage 2 is not linear but slightly curved so that, when said platform 1 is located at the lower level 3 or at the upper level 4, said platform 1 is separated from the floor of the lower level 3 or higher by a space. In order to prevent a user from jamming his foot in this space and from injuring himself, the front edge of the platform 1 advantageously comprises a retractable flap 26, prestressed by elastic means and able to slide along rails 27 positioned under said platform 1 in order to fill said space. It goes without saying that the jack 9 may be replaced by any other actuating member well known to those skilled in the art without departing from the scope of the invention, the hinge axis of the actuating member to the arm 11a and the articulation axis of said arm 11a to the cage 2 never having to be aligned vertically. Furthermore, it goes without saying that the means for actuating said horizontal platform cannot understand . a pair of arms mounted in scissors, - the free ends of a first arm of a pair being articulated around a fixed axis secured to the cage and respectively to the plate around a sliding axis and the ends free of the second arm being articulated around a fixed axis secured to said platform and respectively to the frame of the cage around a sliding axis. Finally, it goes without saying that the horizontal platform of the lift can be replaced by a cabin and that the examples that have just been given are only specific illustrations in no way limiting as to the field of application of the invention.

Claims

REVENDICATIONS
1 - Elévateur entre un niveau inférieur (3) et un niveau supérieur (4) d'une habitation comprenant une cabine ou une plate-forme horizontale (1) apte à être translaté sensiblement verticalement dans une cage (2) depuis le niveau inférieur jusqu'au niveau supérieur et inversement par des moyens d' actionnement positionnés sous la plateforme (1) caractérisé en ce que lesdits moyens d'actionnement comprennent d'une part au moins une paire de bras (11,12) montés en ciseaux, c'est-à-dire articulés autour d'un axe (22) dans leur partie médiane, les extrémités libres d'un premier bras (lia) d'une paire (11) étant articulées autour d'un axe fixe (13) solidaire de la cage (2) et respectivement à la plate-forme autour d'un axe coulissant le long de l'un des bords latéraux de la plate- forme (1) et les extrémités libres du second bras (11b) étant articulées autour d'un axe fixe (16) solidaire du bord latéral de ladite plate-forme (1) et respectivement à la cage (2) autour d'un axe (17) coulissant, de telle sorte que l'axe (16) d'articulation du second bras (11b) à la plate-forme (1), l'axe médian (22) d'articulation des bras (lia, 11b) d'une paire (11) et l'axe (13) d'articulation du premier bras (lia) à la cage ne soient jamais alignés, et d' autre part un organe d' actionnement coopérant avec au moins l'un (lia) des bras (lia, 11b), l' actionnement dudit organe procurant la rotation du premier bras depuis une première position où ledit second bras s'étend au dessus de l'axe (17) coulissant jusqu'à une seconde position inférieure où ledit premier bras (lia) s'étend en dessous dudit axe (17) coulissant, assurant ainsi la translation de la plate-forme (1) depuis une première position où elle s'étend au niveau supérieur (4) de l'habitation jusqu'à une seconde position où elle s'étend au niveau inférieur (3) sous ledit axe (17) coulissant, et inversement. 2 - Elévateur suivant la revendication précédente caractérisé en ce que l'un (11b) des bras (lia, 11b) de chaque paire de bras (11,12) est constitué de deux segments, un premier segment (11 'b) et un second segment' (ll"b) s ' étendant linéairement et • "parallèlement dans deux plans verticaux distincts, lesdits segments (11 'b) et -(ll"b) étant reliés par un axe fixe (22) solidaire des extrémités libres respectives des premier et second segments (ll'b, ll"b) et traversant le premier bras (lia) de la paire (11) . 3 - Elévateur suivant l'une quelconque des revendications précédentes caractérisé en ce que d'une part la cage (2) est constituée d'une ossature (5) comprenant des montants avants (6a) et arrières (6b), des longerons inférieurs (7,7') s ' étendant horizontalement entre le niveau inférieur (3) et le niveau supérieur (4), et des traverses avants (8a) et arrières (8b) et d'autre part, la plate-forme (1) s'étend sous les longerons inférieurs (7,7') de l'ossature (5) de la cage (2) lorsque ladite plate-forme (1) s'étend au niveau inférieur (3) et au dessus desdits longerons (7,7') lorsque ladite plateforme (1) s'étend au niveau supérieur (4). 4 - Elévateur suivant l'une quelconque des revendications précédentes caractérisé en ce qu'il comprend deux paires de bras (11,12) montés en ciseaux respectivement articulés sur les bords latéraux de la plate-forme (1) . 5 - Elévateur suivant la revendication 3 caractérisé en ce que les extrémités libres des bras (lia, 11b) d'une première paire (11) sont solidarisées aux extrémités libres respectives des bras (12a, 12b) de la seconde paire (11) par des barres de liaison (23) . 6 - Elévateur selon l'une quelconque des revendications précédentes caractérisé en ce que l'organe d'actionnement consiste en un vérin (19) dont le corps est solidaire de la cage (2) et dont la tige (20) est articulée à une bielle (21) articulée à l'un (lia) des bras de la paire (11) de telle manière que les axes d'articulation de la bielle (21) à la tige (20) du vérin (19), de la bielle (21) au premier bras (lia) et dudit premier bras (lia) à la cage (2) ne soient jamais alignés. 7 - Elévateur suivant l'une quelconque des revendications précédentes caractérisé en ce- ' -que - les extrémités libres du premier bras (lia.) d'une paire (11) sont articulés autour d'un axe fixe (13), solidaire de l'extrémité arrière d'un longeron inférieur (7) de l'ossature (5) de la cage (2) et respectivement à la plateforme (1) autour d'un axe (14) coulissant le long de l'un des bords latéraux de ladite plate-forme (1) à travers une lumière (15) et les extrémités libres du second bras (11b) sont articulées autour d'un axe fixe (16) solidaire du bord latéral de la plate-forme (1) et respectivement dans la partie médiane du longeron inférieur (7) de l'ossature (5) de la cage (2) autour d'un axe (17) coulissant à travers une lumière longitudinale (18) pratiquée dans la partie médiane dudit longeron inférieur (7) 8 - Elévateur suivant l'une quelconque des revendications 5 à 7 caractérisé en ce que le vérin (19) s'étend verticalement le long de l'un des montants arrières (6b) de l'ossature (5) de la cage (2). 9 - Elévateur suivant la revendication 7 caractérisé en ce que la tige (20) du vérin (19) s'étend au dessus de son corps. 10 - Elévateur suivant l'une quelconque des revendications 2 à 8 caractérisé en ce qu'il comprend au niveau supérieur (4) un portillon (24) pivotant autour de charnières (25) solidaires des montants avants (6a) de l'ossature (5) de la cage (2). 1 - Elevator between a lower level (3) and an upper level (4) of a dwelling comprising a cabin or a horizontal platform (1) capable of being translated substantially vertically in a cage (2) from the lower level to 'at the upper level and vice versa by actuation means positioned under the platform (1) characterized in that said actuation means comprise on the one hand at least one pair of arms (11,12) mounted in scissors, c' that is to say articulated around an axis (22) in their middle part, the free ends of a first arm (11a) of a pair (11) being articulated around a fixed axis (13) integral with the cage (2) and respectively to the platform around a sliding axis along one of the lateral edges of the platform (1) and the free ends of the second arm (11b) being articulated around a fixed axis (16) secured to the lateral edge of said platform (1) and respectively to the cage (2) self ur of a sliding axis (17), such that the axis (16) of articulation of the second arm (11b) to the platform (1), the median axis (22) of articulation of the arms (11a, 11b) of a pair (11) and the axis (13) of articulation of the first arm (11a) to the cage are never aligned, and on the other hand an actuating member cooperating with at least one (11a) of the arms (11a, 11b), the actuation of said member providing the rotation of the first arm from a first position where said second arm extends above the axis (17) sliding to a second lower position where said first arm (11a) extends below said sliding axis (17), thus ensuring the translation of the platform (1) from a first position where it extends to the upper level (4) of the dwelling up to a second position where it extends to the lower level (3) under said sliding axis (17), and vice versa. 2 - Elevator according to the preceding claim characterized in that one (11b) of the arms (11a, 11b) of each pair of arms (11,12) consists of two segments, a first segment (11 'b) and a second segment '(ll "b) extending linearly and •" parallel in two distinct vertical planes, said segments (11' b) and - (ll "b) being connected by a fixed axis (22) integral with the respective free ends of the first and second segments (ll'b, ll "b) and crossing the first arm (lia) of the pair (11). 3 - Elevator according to any one of the preceding claims, characterized in that on the one hand the cage (2) consists of a frame (5) comprising front (6a) and rear (6b) uprights, lower side members ( 7,7 ') extending horizontally between the lower level (3) and the upper level (4), and front (8a) and rear (8b) crosspieces and on the other hand, the platform (1) s 'extends under the lower beams (7,7') of the frame (5) of the cage (2) when said platform (1) extends to the lower level (3) and above said beams (7, 7 ') when said platform (1) extends to the upper level (4). 4 - Elevator according to any one of the preceding claims, characterized in that it comprises two pairs of arms (11,12) mounted in scissors respectively articulated on the lateral edges of the platform (1). 5 - Elevator according to claim 3 characterized in that the free ends of the arms (11a, 11b) of a first pair (11) are secured to the respective free ends of the arms (12a, 12b) of the second pair (11) by connecting bars (23). 6 - Elevator according to any one of the preceding claims, characterized in that the actuating member consists of a jack (19) whose body is integral with the cage (2) and whose rod (20) is articulated to a connecting rod (21) articulated to one (lia) of the arms of the pair (11) in such a way that the axes of articulation of the connecting rod (21) to the rod (20) of the jack (19), of the connecting rod (21) to the first arm (11a) and said first arm (11a) to the cage (2) are never aligned. 7 - Elevator according to any one of previous claims characterized in that - '- that - the free ends of the first arm (lia.) of a pair (11) are articulated around a fixed axis (13), integral with the rear end of a lower spar (7) of the frame (5) of the cage (2) and respectively to the platform (1) around an axis (14) sliding along one of the lateral edges of said platform (1) through a slot (15) and the free ends of the second arm (11b) are articulated around a fixed axis (16) integral with the lateral edge of the platform (1) and respectively in the middle part of the lower spar ( 7) of the frame (5) of the cage (2) around an axis (17) sliding through a longitudinal lumen (18) formed in the middle part of said lower spar (7) 8 - Elevator according to one any one of claims 5 to 7 characterized in that the jack (19) extends vertically along one of the rear uprights (6b) of the frame (5) of the cage (2). 9 - An elevator according to claim 7 characterized in that the rod (20) of the jack (19) extends above its body. 10 - Elevator according to any one of claims 2 to 8 characterized in that it comprises at the upper level (4) a door (24) pivoting around hinges (25) integral with the front uprights (6a) of the frame ( 5) of the cage (2).
EP04767526A 2003-06-30 2004-06-30 Lift Expired - Lifetime EP1644280B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0307868A FR2856670B1 (en) 2003-06-30 2003-06-30 LIFT
PCT/FR2004/001682 WO2005003012A2 (en) 2003-06-30 2004-06-30 Lift

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EP1644280A2 true EP1644280A2 (en) 2006-04-12
EP1644280B1 EP1644280B1 (en) 2010-02-24

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US (1) US7225898B2 (en)
EP (1) EP1644280B1 (en)
JP (1) JP4827730B2 (en)
CN (1) CN100551806C (en)
AT (1) ATE458693T1 (en)
BR (1) BRPI0411642A (en)
CA (1) CA2530540A1 (en)
DE (1) DE602004025704D1 (en)
DK (1) DK1644280T3 (en)
ES (1) ES2341616T3 (en)
FR (1) FR2856670B1 (en)
MA (1) MA27915A1 (en)
PT (1) PT1644280E (en)
RU (1) RU2341441C2 (en)
WO (1) WO2005003012A2 (en)

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CA2592494A1 (en) * 2007-06-12 2008-12-12 Alden Heppner Elevated observatory
DE102007043431A1 (en) * 2007-09-12 2009-03-19 Maquet Gmbh & Co. Kg Transport trolley for the patient support surface of a surgical table
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Also Published As

Publication number Publication date
FR2856670A1 (en) 2004-12-31
PT1644280E (en) 2010-05-31
BRPI0411642A (en) 2006-08-08
EP1644280B1 (en) 2010-02-24
CA2530540A1 (en) 2005-01-13
JP2007516141A (en) 2007-06-21
WO2005003012A3 (en) 2005-04-07
RU2341441C2 (en) 2008-12-20
ATE458693T1 (en) 2010-03-15
RU2005141228A (en) 2007-08-10
DE602004025704D1 (en) 2010-04-08
MA27915A1 (en) 2006-05-02
FR2856670B1 (en) 2006-12-08
US20060180401A1 (en) 2006-08-17
CN100551806C (en) 2009-10-21
JP4827730B2 (en) 2011-11-30
US7225898B2 (en) 2007-06-05
ES2341616T3 (en) 2010-06-23
DK1644280T3 (en) 2010-06-21
CN1829651A (en) 2006-09-06
WO2005003012A2 (en) 2005-01-13

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