FR2503119A1 - Lifting frame for ceiling panel installation - has motor driven double scissor linkages with telescopic upper links carrying travel limiting switches - Google Patents

Lifting frame for ceiling panel installation - has motor driven double scissor linkages with telescopic upper links carrying travel limiting switches Download PDF

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Publication number
FR2503119A1
FR2503119A1 FR8107841A FR8107841A FR2503119A1 FR 2503119 A1 FR2503119 A1 FR 2503119A1 FR 8107841 A FR8107841 A FR 8107841A FR 8107841 A FR8107841 A FR 8107841A FR 2503119 A1 FR2503119 A1 FR 2503119A1
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Prior art keywords
arms
lifting device
lifting
scissor
lifting frame
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FR8107841A
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French (fr)
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Individual
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Priority to FR8107841A priority Critical patent/FR2503119A1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F7/00Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065Scissor linkages, i.e. X-configuration
    • B66F7/0666Multiple scissor linkages vertically arranged
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F7/00Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/0608Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement driven by screw or spindle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F7/00Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/0625Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement with wheels for moving around the floor

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The lifting frame to enable ceiling panels to be installed, can be used for renovation work and can be operated by one man. An upper platform (14) is attached by double scissor linkages (12) to a wheeled base. The linkages are extended by a nut and screw (78,80) attached to the lower part with the screw (78) driven by a motor (74). The arms of the upper part include telescopic portions (94) forming an angle control. These telescopic parts are spring loaded, and switches can be included to stop the driving motor when the linkage is fully extended. A horizontal auxiliary platform (88) can be mounted on the lower part and auxiliary frames (100,104) on the upper platform can include extending frames (100).

Description

L'invention concerne un appareil de levage pour plaques de plafond constitué de deux grilles à ciseaux, qui sont montées sur un cadre au sol et portent une table de levage, et qui sont munies d'un dispositif d'entraînement pour étirer la grille à ciseaux. The invention relates to a lifting device for ceiling plates consisting of two scissor grids, which are mounted on a frame on the ground and carry a lifting table, and which are provided with a drive device for stretching the grid to scissors.

De tels dispositifs de levage sont connus (brevets allemands 19467 et 686615). L'appareil peut être manoeuvré au moyen de chaînes ou de câbles et par une manivelle. Such lifting devices are known (German patents 19467 and 686615). The device can be operated by chains or cables and by a crank.

On connaît également la disposition consistant à utiliser un vérin hydraulique pour étirer la grille à ciseaux (brevet allemand 22 46 868).The arrangement consisting in using a hydraulic cylinder to stretch the scissor grid is also known (German patent 22 46 868).

Dans la rénovation des maisons anciennes, des plaques de plafond préfabriquées sont fixées sur le plafond. La présente invention a pour objet de fournir un appareil de levage spécial adapté à cette utilisation, qui permet l'intervention d'un seul homme et est facilement transportable. In the renovation of old houses, prefabricated ceiling plates are attached to the ceiling. The object of the present invention is to provide a special lifting device suitable for this use, which allows the intervention of a single man and is easily transportable.

L'invention consiste en ce que sur le cadre au sol est montée, de façon à pouvoir pivoter, une broche filetée entraînée en rotation par un moteur, et qui pénètre dans une pièce taraudée qui est montée sur la grille à ciseaux de façon à pouvoir pivoter autour d'un axe parallèle aux axes d'articulation de la grille à ciseaux. The invention consists in that on the ground frame is mounted, so as to be able to pivot, a threaded spindle driven in rotation by a motor, and which penetrates into a threaded part which is mounted on the scissor grid so rotate about an axis parallel to the hinge axes of the scissor grid.

On va décrire de façon plus détaillée l'invention à laide du dessin qui en représente des exemples de réalisation. The invention will be described in more detail with the aid of the drawing which represents exemplary embodiments thereof.

On y voit
Y A la figure 1, une vue de coté du nouvel appareil de levage en position étirée, et ce pour une manoeuvre à la main et par moteur, et,
à la figure 2, un appareil de levage en position
l abaissée, avec le dispositif d'entrainement de la figure 1.
We see
Y In FIG. 1, a side view of the new lifting device in the stretched position, for maneuvering by hand and by motor, and,
in Figure 2, a lifting device in position
l lowered, with the drive device in Figure 1.

L'appareil de levage (10) comporte une monture de grilles à ciseaux (12) avec les bras de grille à ciseaux (20), (22), (24) et (26) disposés en double ; les deux grilles à ciseaux parallèles sont reliées entre elles par des tubes d'articulation (28), (je), (36), (38). La monture (12) porte une table de levage (14) et est disposée sur un cadre au sol (16), qui peut etre véhiculé au moyen de galets de roulement (72). Les deux bras inférieurs (20) parallèles comportent des tourillons (32) avec des galets de roulement (42), qui sont guidés dans des rails de roulement (44) du cadre au sol (16). De façon correspondante, les deux bras supérieurs (26) comportent des tourillons (34) pour des galets de roulement (48), qui sont guidés dans des rails de la table (14). The lifting apparatus (10) comprises a scissor grid mount (12) with the scissor grid arms (20), (22), (24) and (26) arranged in duplicate; the two parallel scissor grids are interconnected by articulation tubes (28), (i), (36), (38). The frame (12) carries a lifting table (14) and is arranged on a ground frame (16), which can be transported by means of rollers (72). The two parallel lower arms (20) have pins (32) with rollers (42) which are guided in running rails (44) from the frame to the ground (16). Correspondingly, the two upper arms (26) have pins (34) for rollers (48), which are guided in table rails (14).

Les autres paires de bras sont fixées, chacune, dans des paliers de pivotement (40) ou (46). The other pairs of arms are each fixed in pivot bearings (40) or (46).

Pour la manoeuvre manuelle de l'appareil de levage (10), il est prévu dans une console de cadre (52), un dispositif d'entraînement (18), qui est constitué d'un arbre dwentratnement (54) avec roue à chaine (56j et d'une manivelle (58), pour entrarner une chaîne sans fin (60), qui est guidée autour de galets de renvoi (62), (64), (66) et est fixée en (68) à une traverse de la paire de bras (20). Un système de cliquets, non représenté, retient lappa- reil de levage dans la position étirée, dans laquelle une plaque de plafond placée sur la table (14) est pressée contre le plafond, et peut ainsi être facilement fixée par la personne de service. For manual operation of the lifting device (10), there is provided in a frame console (52), a drive device (18), which consists of a drive shaft (54) with chain wheel. (56j and a crank (58), to link an endless chain (60), which is guided around idler rollers (62), (64), (66) and is fixed at (68) to a cross member of the pair of arms (20). A ratchet system, not shown, retains the lifting device in the stretched position, in which a ceiling plate placed on the table (14) is pressed against the ceiling, and can thus be easily fixed by the service person.

Pour pouvoir également mettre en oeuvre l'appa reil de levage (10) par un moteur, on a monté sur le cadre (16) un moteur d'entrainement (74) de telle sorte qu'il puisse pivoter autour d'un axe (76) parallèle aux axes d'articulation de la grille à ciseaux, lequel moteur forme avec une broche filetée (78) un ensemble oscillant. Sur le tube d'articulation inférieur (36) de la grille à ciseaux est montée, de façon à pouvoir pivoter autour de l'axe du tube d'articulation, une pièce taraudée (80), dans laquelle pénètre, la broche (78) en entraînant la pièce. To also be able to use the lifting device (10) by a motor, a drive motor (74) has been mounted on the frame (16) so that it can pivot around an axis ( 76) parallel to the axes of articulation of the scissor grid, which motor forms an oscillating assembly with a threaded spindle (78). On the lower articulation tube (36) of the scissor grid is mounted, so as to be able to pivot about the axis of the articulation tube, a threaded part (80), into which the pin (78) penetrates. by driving the piece.

Le moteur (74) est un moteur à inversion du sens de rotation. Une rois la plaque (70) fixée au plafond, la table est abaissée, en faisant tourner la broche (78) dans le sens correspondant, dans la position représentée à la figure 2, dans laquelle la table peut être chargée d'une nouvelle plaque de plafond. The motor (74) is a motor with reverse direction of rotation. Kings plate (70) fixed to the ceiling, the table is lowered, by rotating the spindle (78) in the corresponding direction, in the position shown in Figure 2, in which the table can be loaded with a new plate ceiling.

Les quatre bras supérieurs de grille (24), (26), comportent, tous, des éléments coulissants (82) téles copiques qui, lorsqu'on vient buter sur le plafond, rentrent l'un dans l'autre en bandant des ressorts d'appui (84), jusqu'à ce qu'un interrupteur de fin de course (86), qu'on y a logé, se ferme et coupe le moteur (74). L'opération de levage se déroule donc de façon entièrement automatique. The four upper grid arms (24), (26) all have sliding elements (82) which are telescopic and which, when abutted on the ceiling, fit into each other by bandaging springs of 'support (84), until a limit switch (86), which has been housed there, closes and cuts the motor (74). The lifting operation therefore takes place fully automatically.

Les bras télescopiques assurent donc une mise en place correcte de la plaque (70), même sur un plafond inégal.The telescopic arms therefore ensure correct positioning of the plate (70), even on an uneven ceiling.

De préférence, chacun des bras télescopiques comportera un interrupteur de fin de course. Les interrupteurs de fin de course sont branchés en parallèle, de sorte que le moteur ne s'arrête que lorsque le dernier interrupteur est fermé.Preferably, each of the telescopic arms will include a limit switch. The limit switches are connected in parallel, so that the motor does not stop until the last switch is closed.

Sur les paires de bras inférieurs (20), (22), est fixé un podium (88) qui comprend deux bras porteurs (90) horizontaux, qui sont montés, chacun, de façon à pouvoir pivoter sur le bras (22), et à pouvoir coulisser dans un coulisseau (92) > oscillant, porté par l'autre bras (20). On the pairs of lower arms (20), (22), is fixed a podium (88) which comprises two horizontal support arms (90), which are each mounted so that they can pivot on the arm (22), and able to slide in a slide (92)> oscillating, carried by the other arm (20).

Le podium (88) a, quand la grille à ciseaux est étirée, une distance au sol d'environ 60 cm, de sorte qu'avec une hauteur de la pièce de 2,50 m, la plaque de plafond (70) peut être fixée conrmodément. The podium (88) has, when the scissor grid is stretched, a distance from the ground of about 60 cm, so that with a room height of 2.50 m, the ceiling plate (70) can be fixed appropriately.

I1 est encore important que deux des bras supérieurs, parallèles, puissent être étirés de façon télescopique et être réglés de façon progressive, ou par degrés rapprochés (figure 2), de sorte que soit constitué un dispositif de réglage d'inclinaison (94) afin de pouvoir amener la table de levage, pour des plafonds obliques, dans une position oblique correspondante. It is also important that two of the upper arms, which are parallel, can be telescopically stretched and adjusted progressively, or by close degrees (FIG. 2), so that a tilt adjustment device (94) is formed in order to to be able to bring the lifting table, for oblique ceilings, into a corresponding oblique position.

Ce dispositif de réglage d'inclinaison (94) est utilisé en combinaison avec le dispositif télescopique, à ressorts, des bras, figuré à la figure 1, bien qu'il n'y soit pas representé, pour une plus grande clarté du dessin. This tilt adjustment device (94) is used in combination with the telescopic device, with springs, arms, shown in Figure 1, although not shown, for greater clarity of the drawing.

La table de levage (14) est composée d'un système de cadres, avec deux montants longitudinaux (96), qui sont solidement assemblés entre eux par trois montants transversaux (98) placés au dessus. I1 est essentiel que la table de levage (14) comporte deux cadres auxiliaires (100) que l'on peut étirer longitudinalement, dont les branches (102) sont guidées dans les montants longitudinaux (96), et qui sont goupillés dans la posi tion étirée désirée. De la même manière, il est prévu deux cadres auxilialres que l'on peut étirer transversalement, dont les montants transversaux (104) > figurés en tirets, peuvent coulis ser dans les montants transversaux (93). The lifting table (14) is composed of a system of frames, with two longitudinal uprights (96), which are securely assembled together by three transverse uprights (98) placed above. It is essential that the lifting table (14) has two auxiliary frames (100) which can be stretched longitudinally, the branches (102) of which are guided in the longitudinal uprights (96), and which are pinned into the position stretched desired. In the same way, two auxiliary frames are provided which can be stretched transversely, the transverse uprights (104) of which> shown in dashes, can slide in the transverse uprights (93).

Les montants transversaux des cadres auxiliaires (100) à étirer lonitudinalement ont simplement des traverses (104), qu'on peut tirer.  The transverse uprights of the auxiliary frames (100) to be stretched longitudinally have simply crosspieces (104), which can be pulled.

Claims (7)

REVENDICATIONS 1. Appareil de levage pour plaques de plafond, constitué de deux grilles à ciseaux, qui sont montées sur un cadre au sol et portent une table de levage, et qui sont munies d'un dispositif d'entratnement pour étirer la grille à ciseaux, c a r a c t é r i s é en ce que sur le cadre au sol (16) est montée, de façon à pouvoir pivoter, une broche filetée (78), entrainée en rotation par un moteur et qui pénètre dans une pièce taraudée (80) qui est montée sur la grille à ciseaux (12) de façon à pouvoir pivoter autour d'un axe (36) parallèle aux axes d'articulation des ciseaux. 1. Lifting device for ceiling plates, consisting of two scissor grids, which are mounted on a frame on the ground and carry a lifting table, and which are provided with a drive device for stretching the scissor grid, characterized in that on the ground frame (16) is mounted, so as to be able to pivot, a threaded spindle (78), driven in rotation by a motor and which enters a threaded part (80) which is mounted on the scissor grid (12) so as to be able to pivot about an axis (36) parallel to the axes of articulation of the scissors. 2. Appareil de levage suivant la revendication 1, c a r a c t é r i s é en ce que les bras supérieurs de grille à ciseaux (24), (26) sont constitués de façon à pouvoir coulisser l'un dans l'autre de façon télescopique, en bandant un ressort. 2. Lifting device according to claim 1, characterized in that the upper scissor grid arms (24), (26) are formed so as to be able to slide one inside the other telescopically, in bandaging a spring. 3. Appareil de levage suivant la revendication 2, c a r a c t é r i s é en ce que au moins un des bras télescopiques (24), (26) comporte un interrupteur électrique (86) pour couper le moteur dentrainement (74). 3. Lifting device according to claim 2, c a r a c t é r i s in that at least one of the telescopic arms (24), (26) comprises an electric switch (86) for cutting the drive motor (74). 4. Appareil de levage suivant l'une quelconque des revendications 1 à 3, c a r a c t é r i s é en ce que la broche filetée (78) forme avec le moteur d'entrarnement (74) un ensemble oscillant. 4. Lifting device according to any one of claims 1 to 3, c a r a c t é r i s in that the threaded spindle (78) forms with the drive motor (74) an oscillating assembly. 5. Appareil de levage suivant la revendication 1, c a r a c t é r i s é en ce que la table de levage (14) comporte un'dispositif de réglage d'inclinaison (94), qui est constitué des deux bras supérieurs de grille, parallèless, pouvant être étirés de façon télescopique. 5. Lifting device according to claim 1, characterized in that the lifting table (14) comprises a tilt adjustment device (94), which consists of two upper grid arms, parallel, capable of be stretched telescopically. 6. Appareil de levage suivant la revendication 1, c a r a c t é r i s é en ce que la table de levage (14) comporte des cadres auxiliaires (100), (104) pouvant être étirés en direction longitudinale et/ou en direction transversale. 6. Lifting device according to claim 1, c a r a c t é r i s in that the lifting table (14) comprises auxiliary frames (100), (104) can be stretched in the longitudinal direction and / or in the transverse direction. 7. Appareil de levage suivant une des revendications 1 à 6, c a r a c t é r i s é en ce que sur les paires de bras inférieurs de grille à ciseaux est disposé un po- dium (88), (90) entraîné avec les bras suivant la hauteur.  7. Lifting device according to one of claims 1 to 6, characterized in that on the pairs of lower arms of the scissor grid is disposed a podium (88), (90) driven with the arms according to the height .
FR8107841A 1981-04-07 1981-04-07 Lifting frame for ceiling panel installation - has motor driven double scissor linkages with telescopic upper links carrying travel limiting switches Withdrawn FR2503119A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8107841A FR2503119A1 (en) 1981-04-07 1981-04-07 Lifting frame for ceiling panel installation - has motor driven double scissor linkages with telescopic upper links carrying travel limiting switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8107841A FR2503119A1 (en) 1981-04-07 1981-04-07 Lifting frame for ceiling panel installation - has motor driven double scissor linkages with telescopic upper links carrying travel limiting switches

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FR2503119A1 true FR2503119A1 (en) 1982-10-08

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FR8107841A Withdrawn FR2503119A1 (en) 1981-04-07 1981-04-07 Lifting frame for ceiling panel installation - has motor driven double scissor linkages with telescopic upper links carrying travel limiting switches

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2542031A1 (en) * 1981-09-03 1984-09-07 Elevator Gmbh THEATER SCENE
EP0146176A2 (en) * 1983-12-05 1985-06-26 MASO S.r.l Liftable platform device for housing and covering two motor-cars
FR2693280A1 (en) * 1992-07-01 1994-01-07 Milon Alain Positioning and displacement carriage for optical inspection unit, projector or camera - has optical unit mounted on vertically displaceable platform mounted on tracked carriage
DE4238733A1 (en) * 1992-11-17 1994-05-19 Kloeckner Humboldt Deutz Ag Scissors-lift table with table plate tilt - has guides, of unequal length, divided into unequal lengths by rotary point and has table formed as roller plate
ITVE20090051A1 (en) * 2009-09-17 2011-03-18 O Me R Spa LIFTING BRIDGE.
ITDP20110012A1 (en) * 2011-09-01 2013-03-02 Aar Ingegneria Di Roberto Ferrario E C S A S MULTIFUNCTION TROLLEY WITH PANTOGRAPH LIFTING
CN109610799A (en) * 2019-01-21 2019-04-12 郑州工业应用技术学院 A kind of construction platform for outdoor architecture

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2542031A1 (en) * 1981-09-03 1984-09-07 Elevator Gmbh THEATER SCENE
EP0146176A2 (en) * 1983-12-05 1985-06-26 MASO S.r.l Liftable platform device for housing and covering two motor-cars
EP0146176A3 (en) * 1983-12-05 1986-04-23 MASO S.r.l Liftable platform device for housing and covering two motor-cars
FR2693280A1 (en) * 1992-07-01 1994-01-07 Milon Alain Positioning and displacement carriage for optical inspection unit, projector or camera - has optical unit mounted on vertically displaceable platform mounted on tracked carriage
DE4238733A1 (en) * 1992-11-17 1994-05-19 Kloeckner Humboldt Deutz Ag Scissors-lift table with table plate tilt - has guides, of unequal length, divided into unequal lengths by rotary point and has table formed as roller plate
WO2011032872A1 (en) * 2009-09-17 2011-03-24 O.Me.R. S.P.A. Vehicle lift
ITVE20090051A1 (en) * 2009-09-17 2011-03-18 O Me R Spa LIFTING BRIDGE.
CN102630212A (en) * 2009-09-17 2012-08-08 O.Me.R.股份公司 Vehicle lift
US8286944B2 (en) 2009-09-17 2012-10-16 O.Me.R. S.P.A. Vehicle lift
CN102630212B (en) * 2009-09-17 2015-04-01 O.Me.R.股份公司 Vehicle lift
RU2545532C2 (en) * 2009-09-17 2015-04-10 О.Ме.Р. С.П.А. Lifter of transport facility
ITDP20110012A1 (en) * 2011-09-01 2013-03-02 Aar Ingegneria Di Roberto Ferrario E C S A S MULTIFUNCTION TROLLEY WITH PANTOGRAPH LIFTING
CN109610799A (en) * 2019-01-21 2019-04-12 郑州工业应用技术学院 A kind of construction platform for outdoor architecture

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