EP0002865B1 - Installation to transform a hall at will - Google Patents

Installation to transform a hall at will Download PDF

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Publication number
EP0002865B1
EP0002865B1 EP19780200375 EP78200375A EP0002865B1 EP 0002865 B1 EP0002865 B1 EP 0002865B1 EP 19780200375 EP19780200375 EP 19780200375 EP 78200375 A EP78200375 A EP 78200375A EP 0002865 B1 EP0002865 B1 EP 0002865B1
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EP
European Patent Office
Prior art keywords
floor
floor part
hall
parts
horizontal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19780200375
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German (de)
French (fr)
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EP0002865A1 (en
Inventor
Armand Wijnant
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
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Individual
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Publication date
Priority claimed from BE183783A external-priority patent/BE862255A/en
Priority claimed from BE187889A external-priority patent/BE867303R/en
Priority claimed from BE191401A external-priority patent/BE871602R/en
Application filed by Individual filed Critical Individual
Publication of EP0002865A1 publication Critical patent/EP0002865A1/en
Application granted granted Critical
Publication of EP0002865B1 publication Critical patent/EP0002865B1/en
Expired legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
    • E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
    • E04H3/22—Theatres; Concert halls; Studios for broadcasting, cinematography, television or similar purposes
    • E04H3/24—Constructional features of stages
    • E04H3/28—Shiftable or portable platforms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/16—Roof structures with movable roof parts
    • E04B7/163—Roof structures with movable roof parts characterised by a pivoting movement of the movable roof parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
    • E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
    • E04H3/12—Tribunes, grandstands or terraces for spectators
    • E04H3/126—Foldable, retractable or tiltable tribunes
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
    • E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
    • E04H3/14—Gymnasiums; Other sporting buildings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
    • E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
    • E04H3/14—Gymnasiums; Other sporting buildings
    • E04H2003/142—Gymnasiums; Other sporting buildings with vertically movable or tiltable playing field or sections

Definitions

  • the present invention relates to an installation for transforming a fixed floor room at will into a sports or gymnastic hall or into a theater or party hall, comprising a movable floor which, in the service position, extends obliquely or in steps upwards and which consists of a front floor part and a rear floor part, the front end of which is connected by a joint to the rear end of the front floor part, the rear floor part being mounted so that it can pivot at the same time as the front floor part until the two floor parts occupy a substantially vertical out-of-service position.
  • US Patent No. 2,054,960 describes an installation of the type described above, in which, to bring it from the deployed position to the folded position, the front part is pivoted in the sinistrorsum direction so as to bring its surface closer upper part of the upper surface, while the rear part is made to pivot in the dextrorsum direction, the articulation between the front and rear parts being lowered during folding and the rear part pivoting at its rear end, until the two parts occupy a substantially vertical position in which the external face of the front part is applied to the external face of the rear part.
  • the present invention seeks to remedy this drawback and relates to an installation which, even when it has large dimensions and is heavy, requires substantially less energy to fold or deploy it in order to put it in the off position. service or in service position.
  • the installation of the type described in the first paragraph of this specification is essentially characterized in that the rear floor part is mounted on horizontal pivots or a horizontal shaft extending at a certain distance from its ends and in that control means are provided for pivoting the rear floor part in the dextrorsum or sinistrorsum direction, the control means and the articulation between the front and rear floor parts being such that this articulation rises and that the front floor part pivots simultaneously towards the rear floor part around said articulation, while the front end of the front floor part remains at least close to the fixed floor of the room, and that the rear floor part is brought, by the control means, to pivot towards the substantially vertical position around the horizontal pivots or the above-mentioned horizontal shaft up to an out-of-service position where the underside of the front floor part is adjacent to the underside of the rear floor part, the aforementioned joint lowering and the front floor part pivoting so as to move away from the part rear floor, when the control means pivot the rear floor part from the substantially vertical position, to
  • the front end of the front floor part is arranged so as to remain substantially in contact with the fixed floor of the room while its rear end is raised or lowered when pivoting in the dextrorsum direction. or sinistrorsum of the rear floor part.
  • the rear floor part constituting, in the installation according to the present invention, a lever supported by horizontal pivots or a horizontal shaft so as to present lever arms on either side of this support point, the rear arm of this lever constituting a counterweight which reduces the force necessary to put the installation in service or out of service.
  • the reference notation 1. designates the ceiling of a room, fitted with a fixed horizontal floor 2. At the rear of the room can be provided a pit or cellar 3 delimited by the side walls (not shown) of the room, by the rear vertical wall 4 of the room and by a fixed floor 5.
  • this room is mounted an installation comprising, in essential order, a movable floor designated by the reference notation 6, this floor having an upper surface 7 inclined or possibly provided with bearings, so that it has a minimum thickness or height at the front of the room and a maximum thickness or height at the back of the room (that is to say in the vicinity of its vertical wall 4).
  • the movable floor 6 consists of two floor parts 8 and 9, namely a rear floor part 8 and a front floor part 9, these floor parts being hinged to each other around a transverse shaft horizontal or hinges 10, while the rear floor part 8 is supported by a. horizontal rotation shaft or pivots 11 carried by supports 12.
  • the two movable floor parts 8 and 9 bear on the fixed floor 2 of the hall and therefore occupy a horizontal position in which the hall can serve as a theater, show or cinema hall.
  • the rear floor part 8 is pivoted, by means which will be described below. around the rotation shaft or around the pivots 11 in the sinistrorsum direction (arrow X), so that the front floor part 9, articulated to the rear floor part 8 around the transverse shaft 10 or the hinges 10, is raised at its rear end 14, while its front end 15 slides on the fixed floor 2 in the direction of arrow Y.
  • the two movable floor parts 8 and 9 occupy an intermediate position illustrated in FIG. 2, in which it can be seen that the rear end 16 of the rear floor part 8 begins to become reinforced in the cellar or pit 3.
  • this rear floor part 8 At the end of the movement of the rear floor part 8 in the direction of the arrow X, this rear floor part 8, as well as the front floor part 9 occupy the substantially vertical position illustrated in FIG. 3. , the fixed floor 2 of the room is completely clear and the room can be used, for example, as a gym or gymnastics.
  • walls In order to be able to separate the room from the installation located in its vertical position, walls (not shown) can be slid or rolled in a groove 62 which is located in the fixed floor 2 of the room.
  • the rear floor part 8 is pivoted, using means which will be described below, in the dextrorsum direction (i.e. in the opposite direction to that indicated by arrow X), _ until the floor parts 8 and 9 occupy the horizontal position shown in Figure 1.
  • FIG. 17 Means for bringing the floor parts 8 and 9 from the substantially vertical position to the horizontal position, and vice versa, are shown in FIG. 17.
  • FIG. 14 shows, by way of example, the structure of the rear 8 and front floor parts 9.
  • these floor parts have longitudinal beams or beams 27 which may be of wood or metal and are interconnected by spacers or crosspieces 40.
  • spacers or crosspieces 40 are interconnected by spacers or crosspieces 40.
  • reinforcing crosspieces 41 are provided on the assembly formed by the longitudinal beams or longitudinal members 27, the spacers or crosspieces 40 and the reinforcing crosspieces 41, is fixed a continuous floor.
  • the longitudinal beams or longitudinal members 27 can be made up of metal frames connected to each other by metal spacers. Profiles, Z-shaped, fixed to the side member 52 and 49 can form the floor support and the step floor.
  • Rubber bumpers (not shown), having a large support surface and in sufficient number, can be provided at the base of each part 49 and 52 of the beam, in order on the one hand to guarantee a good seat on the fixed floor 2 , and on the other hand to play the role of shock absorber when the two parts 49 and 52 of the spar meet, either with the fixed floor 2, or with each other.
  • Each rear spar part 49 is equipped with a double-acting hydraulic cylinder 54.
  • the double-acting hydraulic cylinders 54 exert a force on the rear spar parts 49 cantilevered, so as to pivot the rear floor part 8.
  • the rear end 16 of the rear floor part 8 is thus raises and leaves the pit 3, which is provided if necessary.
  • the joints 55 of the rods 56 of the double-acting hydraulic cylinders 54 are located behind the rear spar part 49, while the joints 57 at the base of the cylinders 58 of the cylinders 54 are supported by bearings 59 fixed to the wall of the pit 3, or fixed to the fixed floor 2 if necessary.
  • the control equipment (not shown) consists of an electric motor, a pump, a tank fitted with a filter, hydraulic cylinders, a low-flammable liquid and control elements, safety and regulating valves such as, for example, current distributor, safety valves, dual pilot valves, current regulators and pressure regulating valves.
  • FIG. 4 and 5 Other means for bringing the floor parts 8 and 9 from the substantially vertical position to the horizontal position, and vice versa, are shown in Figures 4 and 5. They include an electric motor 17, including the screw shaft endless 18 meshes with a wheel 19 carried by a shaft 20 which also carries a pinion 21 meshing itself with a toothed wheel 22 wedged on the rotation shaft 11.
  • the electric motor 17 can be carried by a support 23 taking support on the floor 5 of the cellar 3.
  • the speed of the electric motor 17 which is advantageously provided with a reduction gear (not shown) can be reduced when the floor parts 8 and 9 approach their vertical or horizontal positions.
  • the electric motor can be provided with a rheostat or any other known device making it possible to gradually slow down the speed of rotation of the shaft 11 until it stops.
  • hydraulic cylinders with rotary piston (fig. 22 and 23) or a hydraulic motor.
  • FIG. 17 shows that from the start of the deployment movement, a steel cable 48 of appropriate section, equipping each part of the rear spar 49 individually, exerts traction via two return pulleys 50 on a small lever 51 fixed to each part of front spar 52, which aims to accelerate the movement of the front floor part 9, therefore to separate the floor parts 8 and 9 in order to provide the operating safety of the mechanism.
  • the central articulation by means of the transverse shaft 10 or the hinges 10, allows, at about a third of the deployment, the front floor part 9 to rest on wheels 53 provided on the parts of the side members. before 52 and to continue thus trajectory on the fixed floor 2.
  • the cables 48 relax and allow the installation to freely continue its movement on the fixed floor 2.
  • a system (Fig. 24), which is both mechanical and hydraulic, for accelerating the movement of the front floor part 9, therefore to separate the floor parts 8 and 9 from each other, consists in the causes a hydraulic cylinder 90 to be mounted on each part of the rear spar 49.
  • the rod 91 of the hydraulic cylinder 90 exerts traction on a steel cable 92. This traction acts via a pulley 93 on a lever 94 of the part of the front spar 52.
  • the stroke of the rod 91 has ended, the part of the front floor 9 lands on its wheels 53 and can continue its path freely on the fixed floor 2.
  • FIG. 25 Another mechanical system for separating the two floor parts of the installation (fig. 25) consists in mounting supports 105, for example in the form of an angle or T, on the fixed floor 2 and / or on the wall 60 of pit 3, for attaching steel cables 106.
  • the steel cable 106 Passing through a pulley 107, the steel cable 106 is linked to a lever 108 of the front spar part 52.
  • the supports 105 are mounted in such a way that, when the installation is in the substantially vertical position, the cables 106 are approximately parallel to the lower part (that which will come to rest on the fixed floor 2) of the parts of the side members. rear 49. From the start of the deployment movement, the steel cable 106 exerts traction on the lever 108, until the floor parts 8 and 9 are so far apart that the front floor part 9 can land on its wheels 53 and can freely continue its trajectory on the fixed floor 2. This means is also usable in the case where there is no pit or cellar 3. This traction maneuver obviously occurs at the same time on all spar parts 49 and 52.
  • latches and / or counterweights which, where appropriate, are arranged so as to keep the floor parts 8 and 9 substantially in equilibrium whatever their relative positions.
  • FIG. 6 shows the use of springs of various types acting on the rear floor part 8.
  • a spring or several springs 24 acting by traction can be fixed, on the one hand, in the vicinity of the rear end 16 of the part rear floor 8 and, on the other hand, to one of the supports 12 of the horizontal rotation shaft or of the pivots 11.
  • springs 25 acting by means of pressure these springs being housed in a cavity 26 of the fixed floor 2 of the room and being subject, on the one hand, to the rear floor part 8 and on the other hand, to the bottom of the cavity 26.
  • devices such as springs acting by torsion.
  • devices acting in a similar manner can be provided, such as hydraulic cylinders, dashpots and the like.
  • the installation according to the invention may include counterweights. As shown in FIGS. 7 and 8, it is possible to provide on certain longitudinal beams or longitudinal members 27 of the rear floor part 8 with fixed counterweights 28, as well as mobile counterweights 29.
  • the supports 12 are constructed, where appropriate so that the rear spar parts 49, possibly provided with counterweights, can tilt freely.
  • the mobile counterweights 29 can be guided along a rail 61, so as to move from one extreme position to the other during the tilting of the rear floor part 8.
  • FIGS. 9, 10, 11 and 12 Another counterweight system usable in the context of the present invention is illustrated in FIGS. 9, 10, 11 and 12 which also show de-locking or blocking devices. of the rear floor part 8 in a vertical position or in a horizontal position.
  • the rear spar parts 49 of the rear floor part 8 each have an appendage 30 which is received during the tilting of the rear floor part 8 from the vertical position towards the horizontal position, below a small platform 31 capable of moving in a vertical movement along vertical rails 32 in a cage 33.
  • counterweights 35 are freely suspended from cables 34.
  • FIGS. 9, 11 and 12 there are shown, by way of example, six counterweights 35, the dimensions and consequently the weights decrease from top to bottom.
  • the platform 31 occupies its lower rest position and, in this case, the various counterweights 35 are freely suspended from their cables 34 without being in contact with each other or with the platform 31.
  • the appendages 30 come in contact with the lower face of the corresponding platforms 31 and cause them to be raised, so that each platform 31 comes into contact with the lower counterweight 35, then as the platform 31 rises in the cage 33, the counterweights 35 come into contact with each other.
  • the counterweights 35 act one after the other on the appendage 30 of the rear spar parts 49, so as to dampen the pivoting of the rear floor part 8.
  • this rear floor part 8 is in the horizontal position (see FIG. 12)
  • the platform 31 occupies its upper position and supports all the counterweights 35 in contact with one another.
  • locks 36 are provided in an exemplary embodiment of the invention, a lock being preferably provided for each part of the rear spar 49 of the rear floor section 8.
  • the locks 36 are fixed by fasteners 47 to a common guide rod 37, by means of which the locks 36 can be made to slide simultaneously on a rail 38, for example in the shape of a U.
  • the rail 38 is interrupted at the location of recesses 39 formed in the rear vertical wall 4 of the cellar 3 and of the room, in such a way that, when the rear spar parts 49 of the rear floor part 8 are unlocked, these rear spar parts can pivot freely.
  • the common guide rod 37 is obviously mounted outside the path of the rear spar parts 49 of the rear floor part 8.
  • Figures 15 and 16 show a balancing system by hydraulic counterweights of the rear floor part 8 and of the entire installation.
  • the containers 42 and 43 are interconnected by a pipe 44 in which a pump 45 is mounted.
  • a fluid (liquid or pulverulent solid) is contained in each assembly constituted by the containers 42, 43, the pipes 44 and the pumps 45.
  • this floor part In the horizontal position of the rear floor part 8 shown in FIG. 15, this floor part is in equilibrium (taking into account the weight of the front floor part 9) when the containers 42 are filled with fluid.
  • the rear floor part 8 is balanced (taking into account the weight of the front floor part 9), when all the fluid contained in the containers 42 has been pumped by the pumps 45 in the containers 43.
  • the fluid can be pumped back into the receptacles 42 and 43.
  • the fluid which can for example consist of water or a dry powder
  • the fluid can be pumped into the containers 43, so that the rear floor part 8 and the front floor part 9 which is articulated therein take very stable support on the floor 2 of the room.
  • the fluid in the extreme vertical position of the rear floor part 8, the fluid can be pumped into the containers 42, so that the center of gravity of the installation is in the cellar 3, if necessary. Under these conditions, the installation does not risk tipping over, even without locking.
  • the pulses for starting or stopping the pumps 45 can also be supplied by a light beam and photoelectric cells.
  • small movements of the electric motor 17 can be used if necessary. Even if this motor is firmly anchored, the movement undergone by the motor when it acts on the rotation shaft, can create the pulses by light beam and photocell, necessary for starting or stopping the pump (s) 45.
  • a necessary condition for the proper functioning of the hydraulic counterweights is that the time required for the installation to pass from one extreme position to the other will last longer than the time during which the fluid is pumped in a series from containers 42 or 43 to the other series of containers 43 or 42.

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Description

La présente invention est relative à une installation pour transformer à volonté une salle à plancher fixe en une salle de sport ou de gymnastique ou en une salle de théâtre ou de fête, comprenant un plancher mobile qui, dans la position de service, s'étend obliquement ou par paliers vers le haut et qui se compose d'une partie de plancher avant et d'une partie de plancher arrière, dont l'extrémité avant est reliée par une articulation à l'extrémité arrière de la partie de plancher avant, la partie de plancher arrière étant montée de manière à pouvoir pivoter en même temps que la partie de plancher avant jusqua'à ce que les deux parties de plancher occupent une position hors service sensiblement verticale.The present invention relates to an installation for transforming a fixed floor room at will into a sports or gymnastic hall or into a theater or party hall, comprising a movable floor which, in the service position, extends obliquely or in steps upwards and which consists of a front floor part and a rear floor part, the front end of which is connected by a joint to the rear end of the front floor part, the rear floor part being mounted so that it can pivot at the same time as the front floor part until the two floor parts occupy a substantially vertical out-of-service position.

Le brevet américain n° 2.054.960 décrit une installation du type décrit ci-avant, dans laquelle, pour l'amener de la position déployée à la position repliée, on fait pivoter la partie avant dans le sens sinistrorsum de façon à rapprocher sa surface supérieure de la surface supérieure, tandis que la partie arrière est amenée à pivoter dans le sens dextrorsum, l'articulation entre les parties avant et arrière étant abaissée pendant le repliage et la partie arrière pivotant à son extrémité arrière, jusqu'à ce que les deux parties occupent une position sensiblement verticale dans laquelle la face extérieure de la partie avant est appliquée sur la face extérieure de la partie arrière.US Patent No. 2,054,960 describes an installation of the type described above, in which, to bring it from the deployed position to the folded position, the front part is pivoted in the sinistrorsum direction so as to bring its surface closer upper part of the upper surface, while the rear part is made to pivot in the dextrorsum direction, the articulation between the front and rear parts being lowered during folding and the rear part pivoting at its rear end, until the two parts occupy a substantially vertical position in which the external face of the front part is applied to the external face of the rear part.

L'effort nécessaire pour replier les deux parties de l'installation connue peut être considérable, en particulier lorsque cette installation présente de grandes dimensions et est lourde.The effort required to fold the two parts of the known installation can be considerable, in particular when this installation has large dimensions and is heavy.

La présente invention vise à remédier à cet inconvénient et a pour objet une installation qui, même lorsqu'elle présente de grandes dimensions et est pesante, nécessite sensiblement moins d'énergie pour la replier ou la déployer en vue de la mettre en position hors-service ou en position de service.The present invention seeks to remedy this drawback and relates to an installation which, even when it has large dimensions and is heavy, requires substantially less energy to fold or deploy it in order to put it in the off position. service or in service position.

Conformément à la présente invention, l'installation du type décrit dans le premier paragraphe du présént mémoire se caractérise essentiellement en ce que la partie de plancher arrière est montée sur des pivots horizontaux ou un arbre horizontal s'étendant à une certaine distance de ses extrémités et en ce que des moyens de commande sont prévus pour faire pivoter la partie de plancher arrière dans le sens dextrorsum ou sinistrorsum, les moyens de commande et l'articulation entre les parties de plancher avant et arrière étant tels que cette articulation s'élève et que la partie de plancher avant pivote simultanément vers la partie de plancher arrière autour de ladite articulation, tandis que l'extrémité avant de la- partie de plancher avant reste au moins voisine du plancher fixe de la salle, et que la partie de plancher arrière est amenée, par les moyens de commande, à pivoter vers la position sensiblement verticale autour des pivots horizontaux ou de l'arbre horizontal précité jusqu'à une position hors service où la face inférieure de la partie de plancher avant est adjacente à la face inférieure de la partie de plancher arrière, l'articulation précitée s'abaissant et la partie de plancher avant pivotant de manière à s'écarter de la partie de plancher arrière, lorsque les moyens de commande font pivoter la partie de plancher arrière de la position sensiblement verticale, jusqu'à une position de service sensiblement horizontale, dans laquelle les deux parties de plancher s'étendent dans le prolongement l'une de l'autre.In accordance with the present invention, the installation of the type described in the first paragraph of this specification is essentially characterized in that the rear floor part is mounted on horizontal pivots or a horizontal shaft extending at a certain distance from its ends and in that control means are provided for pivoting the rear floor part in the dextrorsum or sinistrorsum direction, the control means and the articulation between the front and rear floor parts being such that this articulation rises and that the front floor part pivots simultaneously towards the rear floor part around said articulation, while the front end of the front floor part remains at least close to the fixed floor of the room, and that the rear floor part is brought, by the control means, to pivot towards the substantially vertical position around the horizontal pivots or the above-mentioned horizontal shaft up to an out-of-service position where the underside of the front floor part is adjacent to the underside of the rear floor part, the aforementioned joint lowering and the front floor part pivoting so as to move away from the part rear floor, when the control means pivot the rear floor part from the substantially vertical position, to a substantially horizontal operating position, in which the two floor parts extend in the extension of one of the 'other.

Suivant une particularité de l'invention, l'extrémité avant de la partie de plancher avant est agencée de manière à rester sensiblement en contact avec le plancher fixe de la salle pendant que son extrémité arrière est élevée ou abaissée lors du pivotement dans le sens dextrorsum ou sinistrorsum de la partie de plancher arrière.According to a feature of the invention, the front end of the front floor part is arranged so as to remain substantially in contact with the fixed floor of the room while its rear end is raised or lowered when pivoting in the dextrorsum direction. or sinistrorsum of the rear floor part.

Comparée à l'installation connue par le brevet américain 2.054.960, dans l'installation suivant l'invention, l'effort nécessaire pour replier les parties de plancher avant et arrière pour les amener en position sensiblement verticale (c'est-à-dire la position hors service) doit s'exercer uniquement sur la partie de plancher arrière, dont l'arbre horizontal ou les pivots horizontaux se trouvent à une certaine distance des deux extrémités de la partie de plancher arrière. Le pivotement de la partie de plancher arrière autour de cet arbre horizontal ou de ces pivots horizontaux a pour effet soit d'élever ou d'abaisser l'articulation entre les parties de plancher avant et arrière. Ainsi, l'articulation entre les parties avant et arrière de l'installation selon le brevet américain précité se rapproche du sol, lorsqu'on replie cette installation, tandis que dans l'installation selon la présente invention, cette articulation s'éloigne au contraire du sol lors du repliage vers la position hors service.Compared to the installation known by American patent 2,054,960, in the installation according to the invention, the effort necessary to fold the front and rear floor parts to bring them into a substantially vertical position (i.e. say the out-of-service position) must be exerted only on the rear floor part, the horizontal shaft or horizontal pivots of which are at a certain distance from the two ends of the rear floor part. The pivoting of the rear floor part around this horizontal shaft or these horizontal pivots has the effect of either raising or lowering the joint between the front and rear floor parts. Thus, the articulation between the front and rear parts of the installation according to the aforementioned American patent approaches the ground, when this installation is folded, while in the installation according to the present invention, this articulation moves away on the contrary from the ground when folding back to the out of service position.

Pour remettre la tribune selon le brevet américain en position de service, l'articulation entre ses parties avant et arrière s'élève, tandis que, dans l'installation selon la présente invention, cette articulation s'abaisse.To return the platform according to the American patent to the service position, the articulation between its front and rear parts rises, while, in the installation according to the present invention, this articulation is lowered.

Grâce au fait que, dans l'installation selon la présente invention, le pivotement de la partie de plancher arrière qui entraîne celui de la partie de plancher avant se fait en un point situé entre les extrémités de la partie de plancher arrière (plutôt qu'à l'extrémité de cette partie de plancher arrière articulée à une paroi verticale comme dans le brevet américain en question) l'effort nécessaire pour replier les deux parties de plancher est beaucoup moins important, la partie de plancher arrière constituant, dans l'installation suivant la présente invention, un levier supporté par des pivots horizontaux ou un arbre horizontal de manière à présenter des bras de levier de part et d'autre de ce point de support, le bras postérieur de ce levier constituant un contrepoids qui diminue la force nécessaire pour mettre l'installation en service ou hors service.Thanks to the fact that, in the installation according to the present invention, the pivoting of the rear floor part which causes that of the front floor part takes place at a point situated between the ends of the rear floor part (rather than at the end of this rear floor part articulated to a vertical wall as in the American patent in question) the effort required to fold the two floor parts is much less, the rear floor part constituting, in the installation according to the present invention, a lever supported by horizontal pivots or a horizontal shaft so as to present lever arms on either side of this support point, the rear arm of this lever constituting a counterweight which reduces the force necessary to put the installation in service or out of service.

D'autres particularités et détails de l'invention ressortiront de la description suivante dans laquelle il est fait référence aux dessins schématiques ci-annexés, dans lesquels:

  • - les figures 1, 2 et 3 montrent schématiquement, en élévation latérale, une première forme de réalisation purement exemplative d'une installation suivant l'invention;
  • -les figures 4 et 5 montrent schématiquement un mécanisme d'entraînement des parties de plancher de l'installation;
  • - la figure 6 est une vue en élévation latéralle montrant l'emploi de ressorts pour maintenir les parties de plancher mobiles en position verticale ou en position horizontale;
  • - les figures 7 et 8 montrent, respectivement en élévation latérale et en coupe suivant la ligne VIII-VIII de la figure 7, l'emploi de contrepoids fixes et/ou coulissants pour équilibrer les parties de plancher de l'installation suivant l'invention;
  • - les figures 9 et 12 sont des vues en élévation latérale montrant l'emploi d'une série de contrepoids d'équilibrage de la construction respectivement avant que celle-ci atteigne sa position horizontale et au moment où elle atteint cette position;
  • -la figure 10 est une vue en plan d'un détail du dispositif montré aux figures 9 et 12, cette figure, de même.que la figure 12 montrant également des verrous de blocage de la partie de plancher arrière en position horizontale;
  • - la figure 11 est une vue en élévation en regardant dans la direction de la flèche Z à la figure 9;
  • -la figure 13 est une vue générale en plan de la paroi arrière et de la cave de la salle;
  • - la figure 14 est une vue en plan montrant schématiquement la structure des parties de plancher arrière et avant de l'installation suivant l'invention;
  • -les figures 15 et 16 montrent l'emploi de contrepoids hydrauliques dans une installation suivant l'invention;
  • - la figure 17 montre, en élévation latérale, une seconde forme de réalisation purement exemplative d'une installation suivant l'invention, en position horizontale, verticale et intermédiare;
  • - les figures 18, 19 et 20 montrent schématiquement, en élévation latérale, d'autres formes de réalisation purement exemplatives de l'installation, en position horizontale et verticale, installées dans des salles diverses;
  • - la figure 21 montre un cylindre hydraulique à crémaillère;
  • - les figures 22 et 23 montrent, en élévation latérale et en coupe transversale, un cylindre hydraulique à piston rotatif;
  • - la figure 24 montre, en élévation latérale, un moyen à la fois mécanique et hydraulique servant à écarter les deux parties de plancher de l'installation.
  • -la figure 25 montre, en élévation latérale, un autre moyen mécanique à écarter les deux parties de plancher de l'installation.
Other particularities and details of the invention will emerge from the following description in which reference is made to the attached schematic drawings, in which:
  • - Figures 1, 2 and 3 show schematically, in side elevation, a first purely illustrative embodiment of an installation according to the invention;
  • FIGS. 4 and 5 schematically show a drive mechanism for the floor parts of the installation;
  • - Figure 6 is a side elevational view showing the use of springs to maintain the movable floor parts in a vertical position or in a horizontal position;
  • - Figures 7 and 8 show, respectively in side elevation and in section along line VIII-VIII of Figure 7, the use of fixed and / or sliding counterweights to balance the floor parts of the installation according to the invention ;
  • - Figures 9 and 12 are side elevational views showing the use of a series of balancing counterweights of the construction respectively before it reaches its horizontal position and when it reaches this position;
  • FIG. 10 is a plan view of a detail of the device shown in FIGS. 9 and 12, this figure, as well as FIG. 12 also showing locks for locking the rear floor part in the horizontal position;
  • - Figure 11 is an elevational view looking in the direction of arrow Z in Figure 9;
  • FIG. 13 is a general plan view of the rear wall and of the cellar of the room;
  • - Figure 14 is a plan view schematically showing the structure of the rear and front floor parts of the installation according to the invention;
  • FIGS. 15 and 16 show the use of hydraulic counterweights in an installation according to the invention;
  • - Figure 17 shows, in side elevation, a second purely illustrative embodiment of an installation according to the invention, in horizontal, vertical and intermediate position;
  • - Figures 18, 19 and 20 show schematically, in side elevation, other purely exemplary embodiments of the installation, in horizontal and vertical position, installed in various rooms;
  • - Figure 21 shows a hydraulic rack cylinder;
  • - Figures 22 and 23 show, in side elevation and in cross section, a hydraulic cylinder with rotary piston;
  • - Figure 24 shows, in side elevation, both mechanical and hydraulic means used to separate the two floor parts of the installation.
  • FIG. 25 shows, in side elevation, another mechanical means for spreading the two floor parts of the installation.

Dans ces différentes figures, les mêmes notations de référence désignent des éléments identiques.In these different figures, the same reference notations designate identical elements.

Aux figures 1 à 3, la notgtion de référence 1. désigne le plafond d'une salle, munie d'unplan- cher horizontal fixe 2. A l'arriére de la salle peut être prévue une fosse ou cave 3 délimitée par les parois latérales (non montrées) de la salle, par la paroi verticale arrière 4 de la salle et par un plancher fixe 5.In Figures 1 to 3, the reference notation 1. designates the ceiling of a room, fitted with a fixed horizontal floor 2. At the rear of the room can be provided a pit or cellar 3 delimited by the side walls (not shown) of the room, by the rear vertical wall 4 of the room and by a fixed floor 5.

Dans cette salle est montée une installation comprenant, en ordre essentiel, un plancher mobile désigné par la notation de référence 6, ce plancher présentant une surface supérieure 7 inclinée ou éventuellement munie de paliers, de telle sorte qu'il présente une épaisseur ou hauteur minimale à l'avant de la salle et une épaisseur ou hauteur maximale à l'arrière de la salle (c'est-à-dire au voisinage de sa paroi verticale 4).In this room is mounted an installation comprising, in essential order, a movable floor designated by the reference notation 6, this floor having an upper surface 7 inclined or possibly provided with bearings, so that it has a minimum thickness or height at the front of the room and a maximum thickness or height at the back of the room (that is to say in the vicinity of its vertical wall 4).

Le plancher mobile 6 se compose de deux parties de plancher 8 et 9, à savoir une partie de plancher arrière 8 et une partie de plancher avant 9, ces parties de plancher étant articulées l'une à l'autre autour d'un arbre transversal horizontal ou de charnières 10, tandis que la partie de plancher arrière 8 est supportée par un . arbre de rotation horizontal ou des pivots 11 portés par des supports 12.The movable floor 6 consists of two floor parts 8 and 9, namely a rear floor part 8 and a front floor part 9, these floor parts being hinged to each other around a transverse shaft horizontal or hinges 10, while the rear floor part 8 is supported by a. horizontal rotation shaft or pivots 11 carried by supports 12.

Sur chacune des parties de plancher 8 et 9 sont fixées à demeure des rangées de sièges (chaises ou fauteuils) schématisées en 13. La dernière rangée de sièges peut être fixée directement à la paroi verticale arrière 4 de la salle.On each of the floor parts 8 and 9 are permanently fixed rows of seats (chairs or armchairs) shown diagrammatically at 13. The last row of seats can be fixed directly to the rear vertical wall 4 of the room.

A la figure 1, les deux parties de plancher mobiles 8 et 9 prennent appui sur le plancher fixe 2 de la salle et occupent donc une position horizontale dont laquelle la salle peut servir de salle de théâtre, de spectacle ou de cinéma.In FIG. 1, the two movable floor parts 8 and 9 bear on the fixed floor 2 of the hall and therefore occupy a horizontal position in which the hall can serve as a theater, show or cinema hall.

Lorsqu'on désire transformer la salle de théâtre en une salle de sport ou de gymnastique, une salle de banquet ou une salle de danse, on fait pivoter, à l'aide de moyens qui seront décrits plus loin, la partie de plancher arrière 8 autour de l'arbre de rotation ou autour des pivots 11 dans le sens sinistrorsum (flèche X), de telle sorte que la partie de plancher avant 9, articulée à la partie de plancher arrière 8 autour de l'arbre transversal 10 ou des charnières 10, est soulevée à son extrémité postérieure 14, tandis que son extrémité antérieure 15 glisse sur le plancher fixe 2 dans la direction de la flèche Y.When it is desired to transform the theater hall into a sports or gymnastic hall, a banquet hall or a dance hall, the rear floor part 8 is pivoted, by means which will be described below. around the rotation shaft or around the pivots 11 in the sinistrorsum direction (arrow X), so that the front floor part 9, articulated to the rear floor part 8 around the transverse shaft 10 or the hinges 10, is raised at its rear end 14, while its front end 15 slides on the fixed floor 2 in the direction of arrow Y.

Ainsi, les deux parties de plancher mobiles 8 et 9 viennent occuper une position intermédiaire illustrée à la figure 2, dans laquelle on voit que l'extrémité postérieure 16 de la partie de plancher arrière 8 commence à s'enforcer dans la cave ou fosse 3.Thus, the two movable floor parts 8 and 9 occupy an intermediate position illustrated in FIG. 2, in which it can be seen that the rear end 16 of the rear floor part 8 begins to become reinforced in the cellar or pit 3.

A la fin du mouvement de la partie de plancher arrière 8 dans le sens de la flèche X, cette partie de plancher arrière 8, de même que la partie de plancher avant 9 occupent la position sensiblement verticale illustrée à la figure 3. A ce moment, le plancher fixe 2 de la salle est entièrement dégagé et la salle peut servir, par exemple, de salle de sport ou de gymnastique.At the end of the movement of the rear floor part 8 in the direction of the arrow X, this rear floor part 8, as well as the front floor part 9 occupy the substantially vertical position illustrated in FIG. 3. , the fixed floor 2 of the room is completely clear and the room can be used, for example, as a gym or gymnastics.

Afin de pouvoir séparer la salle de l'installation se trouvant dans sa position verticale, des parois (non figurées) peuvent être glissées ou roulées dans une rainure 62 qui se trouve dans le plancher fixe 2 de la salle.In order to be able to separate the room from the installation located in its vertical position, walls (not shown) can be slid or rolled in a groove 62 which is located in the fixed floor 2 of the room.

Pour retransformer la salle de sport ou de gymnastique en une salle de spectacle, on fait pivoter, à l'aide de moyens qui seront décrits plus loin, la partie de plancher arrière 8, dans le sens dextrorsum (c'est-à-dire dans le sens inverse de celui indiqué par la flèche X),_ jusqu'à ce que les parties de plancher 8 et 9 occupent la position horizontale montrée à la figure 1.To transform the sports hall or gymnastics hall into a performance hall, the rear floor part 8 is pivoted, using means which will be described below, in the dextrorsum direction (i.e. in the opposite direction to that indicated by arrow X), _ until the floor parts 8 and 9 occupy the horizontal position shown in Figure 1.

Des moyens servant à amener les parties de plancher 8 et 9 de la position sensiblement verticale à la position horizontale, et vice versa, sont représentés à la figure 17.Means for bringing the floor parts 8 and 9 from the substantially vertical position to the horizontal position, and vice versa, are shown in FIG. 17.

La figure 14 montre, à titre d'exemple, la structure des parties de plancher arrière 8 et avant 9. Comme le montre cette figure, ces parties de plancher comportent des poutres longitudinales ou longerons 27 qui peuvent être en bois ou en métal et sont reliés entre eux par des entretoises ou traverses 40. Pour empêcher une déformation des parties de plancher, on prévoit des croisillons de renforcement 41. Sur l'ensemble formé par les poutres longitudinales ou longerons 27, les entretoises ou traverses 40 et les croisillons de renforcement 41, est fixé un plancher continu.FIG. 14 shows, by way of example, the structure of the rear 8 and front floor parts 9. As shown in this figure, these floor parts have longitudinal beams or beams 27 which may be of wood or metal and are interconnected by spacers or crosspieces 40. To prevent deformation of the floor parts, reinforcing crosspieces 41 are provided. On the assembly formed by the longitudinal beams or longitudinal members 27, the spacers or crosspieces 40 and the reinforcing crosspieces 41, is fixed a continuous floor.

Il est évident que la structure des parties de plancher mobiles peut être différente de celle illustrée à la figure 14. Ainsi, les poutres longitudinales ou longerons 27 peuvent être constituées de cadres métalliques reliés entre eux par des entretoises métalliques. Des profils, en forme de Z, fixés sur les parties de longeron 52 et 49 peuvent former support de plancher et parterre de gradins.It is obvious that the structure of the movable floor parts can be different from that illustrated in FIG. 14. Thus, the longitudinal beams or longitudinal members 27 can be made up of metal frames connected to each other by metal spacers. Profiles, Z-shaped, fixed to the side member 52 and 49 can form the floor support and the step floor.

Des butoirs en caoutchouc (non figurés), présentant une grande surface d'appui et en nombre suffisant, peuvent être prévus à la base de chaque partie 49 et 52 de longeron, afin d'une part de garantir une bonne assise au plancher fixe 2, et d'autre part de jouer le rôle d'amortisseur lors de la rencontre des deux parties 49 et 52 de longeron, soit avec le plancher fixe 2, soit l'une avec l'autre.Rubber bumpers (not shown), having a large support surface and in sufficient number, can be provided at the base of each part 49 and 52 of the beam, in order on the one hand to guarantee a good seat on the fixed floor 2 , and on the other hand to play the role of shock absorber when the two parts 49 and 52 of the spar meet, either with the fixed floor 2, or with each other.

Chaque partie de longerons arrière 49 est équipée d'un vérin hydraulique à double effet 54. Lors du déploiement de l'installation, c'est-à-dire du basculement de la partie de plancher arrière 8 depuis la position verticale jusqu'à la position horizontale, les vérins hydrauliques à double effet 54 exercent une force sur les parties de longeron arrières 49 en porte à faux, de manière à faire pivoter la partie de plancher arrière 8. L'extrémité postérieure 16 de la partie de plancher arrière 8 se lève et sort ainsi de la fosse 3, qui est prévue le cas échéant.Each rear spar part 49 is equipped with a double-acting hydraulic cylinder 54. During the deployment of the installation, that is to say the tilting of the rear floor part 8 from the vertical position to the horizontal position, the double-acting hydraulic cylinders 54 exert a force on the rear spar parts 49 cantilevered, so as to pivot the rear floor part 8. The rear end 16 of the rear floor part 8 is thus raises and leaves the pit 3, which is provided if necessary.

Les articulations 55 des tiges 56 des vérins hydrauliques à double effet 54 se trouvent à arrière de la partie de longeron arrière 49, tandis que les articulations 57 à la base des cylindres 58 des vérins 54 sont supportées par des paliers 59 fixés au mur de la fosse 3, ou fixés sur le plancher fixe 2 le cas échéant.The joints 55 of the rods 56 of the double-acting hydraulic cylinders 54 are located behind the rear spar part 49, while the joints 57 at the base of the cylinders 58 of the cylinders 54 are supported by bearings 59 fixed to the wall of the pit 3, or fixed to the fixed floor 2 if necessary.

L'équipement de commande (non figuré) se compose d'un moteur électrique, d'une pompe, d'un réservoir muni d'un filtre, de vérins hydrauliques, d'un liquide peu inflammable et d'organes de commande, de sûreté et de réglage tels que, par exemple, distributeur de courant, soupapes de sûreté, valves à double pilotage, régulateurs de courant et soupapes de réglage de pression.The control equipment (not shown) consists of an electric motor, a pump, a tank fitted with a filter, hydraulic cylinders, a low-flammable liquid and control elements, safety and regulating valves such as, for example, current distributor, safety valves, dual pilot valves, current regulators and pressure regulating valves.

D'autres moyens servant à amener les parties de plancher 8 et 9 de la position sensiblement verticale à la position horizontale, et vice-versa, sont représentés aux figures 4 et 5. Ils comprennent un moteur électrique 17, dont l'arbre à vis sans fin 18 engrène avec une roue 19 portée par un arbre 20 qui porte ègalement un pignon 21 engrenant lui-même avec une roue dentée 22 calée sur l'arbre de rotation 11. Le moteur électrique 17 peut être porté par un support 23 prenant appui sur la plancher 5 de la cave 3.Other means for bringing the floor parts 8 and 9 from the substantially vertical position to the horizontal position, and vice versa, are shown in Figures 4 and 5. They include an electric motor 17, including the screw shaft endless 18 meshes with a wheel 19 carried by a shaft 20 which also carries a pinion 21 meshing itself with a toothed wheel 22 wedged on the rotation shaft 11. The electric motor 17 can be carried by a support 23 taking support on the floor 5 of the cellar 3.

Il est essentiel que la vitesse du moteur électrique 17 qui est avantageusement muni d'un réducteur (non représenté) puisse être réduite lorsque les parties de plancher 8 et 9 approchent de leurs positions verticale ou horizontale. A cette fin, le moteur électrique peut être pourvu d'un rhéostat ou de tout autre dispositif connu permettant de ralentir progressivement la vitesse de rotation de l'arbre 11 jusqu'à son arrêt.It is essential that the speed of the electric motor 17 which is advantageously provided with a reduction gear (not shown) can be reduced when the floor parts 8 and 9 approach their vertical or horizontal positions. To this end, the electric motor can be provided with a rheostat or any other known device making it possible to gradually slow down the speed of rotation of the shaft 11 until it stops.

Pour le basculement de la partie de plancher arrière 8 depuis la position horizontale, on peut également employer des cylindres hydrauliques à crémaillère 63 (Fig. 21), montés dans une chambre 64 et munis d'une crémaillère 65, engrenant avec un pignon denté 66, également monté dans cette chambre 64. Le pignon denté 66 est connecté aux pivots ou à l'arbre de rotation horizontal 11, tandis que la chambre 64 est fixée soit sur la partie de longeron arrière 49, soit sur le plancher fixe 2, soit sur des supports.For tilting the rear floor part 8 from the horizontal position, it is also possible to use hydraulic rack cylinders 63 (Fig. 21), mounted in a chamber 64 and provided with a rack 65, meshing with a toothed pinion 66 , also mounted in this chamber 64. The toothed pinion 66 is connected to the pivots or to the horizontal rotation shaft 11, while the chamber 64 is fixed either on the rear spar part 49, or on the fixed floor 2, or on supports.

Pour le même basculement on peut ègalement employer des cylindres hydrauliques à piston rotatif (fig. 22 et 23) ou un moteur hydraulique.For the same tilting, it is also possible to use hydraulic cylinders with rotary piston (fig. 22 and 23) or a hydraulic motor.

La figure 17 montre que dès le début du mouvement de déploiement un câble d'acier 48 de section appropriée, équipant chaque partie de longeron arrière 49 individuellement, exerce une traction via deux poulies de renvoi 50 sur un petit levier 51 fixé sur chaque partie de longeron avant 52, qui a pour but d'accélérer le mouvement de la partie de plancher avant 9, donc d'écarter les parties de plancher 8 et 9 afin de pourvoir à la sécurité de fonctionnement du mécanisme.FIG. 17 shows that from the start of the deployment movement, a steel cable 48 of appropriate section, equipping each part of the rear spar 49 individually, exerts traction via two return pulleys 50 on a small lever 51 fixed to each part of front spar 52, which aims to accelerate the movement of the front floor part 9, therefore to separate the floor parts 8 and 9 in order to provide the operating safety of the mechanism.

Lors de ce mouvement, l'articulation centrale au moyen de l'arbre transversal 10 ou des charnières 10, permet, au tiers environ du déploiement, à la partie de plancher avant 9 de se poser sur des roues 53 prévues sur les parties de longerons avant 52 et de continuer ainsi se trajectoire sur le plancher fixe 2. Les câbles 48 se détendent et permettent à l'installation de poursuivre librement son mouvement sur le plancher fixe 2.During this movement, the central articulation by means of the transverse shaft 10 or the hinges 10, allows, at about a third of the deployment, the front floor part 9 to rest on wheels 53 provided on the parts of the side members. before 52 and to continue thus trajectory on the fixed floor 2. The cables 48 relax and allow the installation to freely continue its movement on the fixed floor 2.

A côté de ce moyen mécanique pour écarter les parties de plancher 8 et 9, on peut prévoir d'autres moyens mécaniques, électriques, hydrauliques et pneumatiques.Besides this mechanical means for spreading the floor parts 8 and 9, other mechanical, electrical, hydraulic and pneumatic means can be provided.

Un système (Fig. 24), qui est à la fois mécanique et hydraulique, pour accélerer le mouvement de la partie du plancher avant 9, donc pour écarter les parties de plancher 8 et 9 l'une de l'autre, consiste dans le fait qu'un vérin hydraulique 90, est monté sur chaque partie de longeron arrière 49. La tige 91 du vérin hydraulique 90 exerce une traction sur un câble d'acier 92. Cette traction agit via une poulie 93 sur un levier 94 de la partie de longeron avant 52. Au moment où la course de la tige 91 est terminée, la partie du plancher avant 9 se pose sur ses roues 53 et peut continuer librement sa trajectoire sur le plancher fixe 2.A system (Fig. 24), which is both mechanical and hydraulic, for accelerating the movement of the front floor part 9, therefore to separate the floor parts 8 and 9 from each other, consists in the causes a hydraulic cylinder 90 to be mounted on each part of the rear spar 49. The rod 91 of the hydraulic cylinder 90 exerts traction on a steel cable 92. This traction acts via a pulley 93 on a lever 94 of the part of the front spar 52. When the stroke of the rod 91 has ended, the part of the front floor 9 lands on its wheels 53 and can continue its path freely on the fixed floor 2.

Un autre système mécanique pour écarter les deux parties de plancher de l'installation (fig. 25) consiste dans le fait de monter des supports 105, par exemple en forme de cornière ou de T, sur le plancher fixe 2 et/ou sur le mur 60 de la fosse 3, pour attacher des câbles d'acier 106.Another mechanical system for separating the two floor parts of the installation (fig. 25) consists in mounting supports 105, for example in the form of an angle or T, on the fixed floor 2 and / or on the wall 60 of pit 3, for attaching steel cables 106.

En passant par une poulie 107 le câble d'acier 106 est lié à un levier 108 de la partie de longeron avant 52.Passing through a pulley 107, the steel cable 106 is linked to a lever 108 of the front spar part 52.

Les supports 105 sont montés de telle façon que, quand l'installation se trouve dans la position sensiblement verticale, les câbles 106 sont à peu près parallèles à la partie inférieure (celle qui viendra se poser sur le plancher fixe 2) des parties de longerons arrières 49. Dès le début du mouvement de déploiement, le câble d'acier 106 exerce une traction sur le levier 108, jusqu'au moment où les parties de plancher 8 et 9 sont tellement écartées que la partie du plancher avant 9 peut se poser sur ses roues 53 et peut continuer librement sa trajectoire sur le plancher fixe 2. Ce moyen est également utilisable dans le cas où il n'y a pas de fosse ou cave 3. Cette manoeuvre de traction se produit évidemment en même temps sur toutes les parties de longerons 49 et 52.The supports 105 are mounted in such a way that, when the installation is in the substantially vertical position, the cables 106 are approximately parallel to the lower part (that which will come to rest on the fixed floor 2) of the parts of the side members. rear 49. From the start of the deployment movement, the steel cable 106 exerts traction on the lever 108, until the floor parts 8 and 9 are so far apart that the front floor part 9 can land on its wheels 53 and can freely continue its trajectory on the fixed floor 2. This means is also usable in the case where there is no pit or cellar 3. This traction maneuver obviously occurs at the same time on all spar parts 49 and 52.

Pour maintenir les parties de plancher 8 et 9 soit en position verticale (fig. 3), soit en position horizontale (fig. 1 ), on peut prévoir dans l'installation suivant l'invention des verrous et/ou des contrepoids qui, le cas échéant, sont agencés de manière à maintenir les parties de plancher 8 et 9 sensiblement en équilibre quelles que soient leurs positions relatives.To maintain the floor parts 8 and 9 either in a vertical position (fig. 3) or in a horizontal position (fig. 1), it is possible to provide in the installation according to the invention latches and / or counterweights which, where appropriate, are arranged so as to keep the floor parts 8 and 9 substantially in equilibrium whatever their relative positions.

La figure 6 montre l'emploi de ressorts de divers types agissant sur la partie de plancher arrière 8. Un ressort ou plusieurs ressorts 24 agissant par traction peuvent être fixés, d'une part, au voisinage de l'extrémité postérieure 16 de la partie de plancher arrière 8 et, d'autre part, à un des supports 12 de l'arbre de rotation horizontal ou des pivots 11. En plus des ressorts 24 ou à la place de ceux-ci, on peut prévoir des ressorts 25 agissant par pression, ces ressorts étant logés dans une cavité 26 du plancher fixe 2 de la salle et étant assujettis, d'une part, à la partie de plancher arrière 8 et d'autre part, au fond de la cavité 26. Au lieu de ressorts agissant par traction ou par pression, on peut aussi utiliser, dans le cadre de l'invention, des dispositifs tels que des ressorts agissant par torsion. Au lieu des ressorts 24 et/ou 25, on peut prévoir des dispositifs agissant de manière analogue, tels que vérins hydrauliques, dashpots et analogues.FIG. 6 shows the use of springs of various types acting on the rear floor part 8. A spring or several springs 24 acting by traction can be fixed, on the one hand, in the vicinity of the rear end 16 of the part rear floor 8 and, on the other hand, to one of the supports 12 of the horizontal rotation shaft or of the pivots 11. In addition to the springs 24 or in their place, springs 25 acting by means of pressure, these springs being housed in a cavity 26 of the fixed floor 2 of the room and being subject, on the one hand, to the rear floor part 8 and on the other hand, to the bottom of the cavity 26. Instead of springs acting by traction or by pressure, it is also possible to use, within the framework of the invention, devices such as springs acting by torsion. Instead of springs 24 and / or 25, devices acting in a similar manner can be provided, such as hydraulic cylinders, dashpots and the like.

L'installation suivant l'invention peut comporter des contrepoids. Comme le montrent les figures 7 et 8, on peut prévoir sur certaines poutres longitudinales ou longerons 27 de la partie de plancher arrière 8 des contrepoids fixes 28, ainsi que des contrepoids mobiles 29.The installation according to the invention may include counterweights. As shown in FIGS. 7 and 8, it is possible to provide on certain longitudinal beams or longitudinal members 27 of the rear floor part 8 with fixed counterweights 28, as well as mobile counterweights 29.

Les supports 12 sont construits, le cas échéant de telle façon que les parties de longeron arrières 49, éventuellement pourvues de contrepoids, puissent basculer librement.The supports 12 are constructed, where appropriate so that the rear spar parts 49, possibly provided with counterweights, can tilt freely.

Les contrepoids mobiles 29 peuvent être guidés le long d'un rail 61, de manière à se déplacer d'une position extrême à l'autre pendant la basculement de la partie de plancher arrière 8.The mobile counterweights 29 can be guided along a rail 61, so as to move from one extreme position to the other during the tilting of the rear floor part 8.

Un autre système de contrepoids utilisable dans le cadre de la présente invention est illustré aux figures 9, 10, 11 et 12 qui montrent également des dispositifs de-verrouillage ou de blocage. de la partie de plancher arrière 8 en position verticale ou en position horizontale.Another counterweight system usable in the context of the present invention is illustrated in FIGS. 9, 10, 11 and 12 which also show de-locking or blocking devices. of the rear floor part 8 in a vertical position or in a horizontal position.

Comme on le voit aux figures 9 et 10, les parties de longeron arrières 49 de la partie de plancher arrière 8 présentent chacune un appendice 30 qui vient se loger, au cours du basculement de la partie de plancher arrière 8 de la position verticale vers la position horizontale, en dessous d'une petite plateforme 31 capable de se déplacer suivant un mouvement vertical le long de rails verticaux 32 dans une cage 33. Dans cette cage 33, des contrepoids 35 sont suspendus librement à des câbles 34. Aux figures 9, 11 et 12, on a représenté, à titre d'exemples, six contrepoids 35, dont les dimensions et par conséquent les poids diminuent de haut en bas.As can be seen in FIGS. 9 and 10, the rear spar parts 49 of the rear floor part 8 each have an appendage 30 which is received during the tilting of the rear floor part 8 from the vertical position towards the horizontal position, below a small platform 31 capable of moving in a vertical movement along vertical rails 32 in a cage 33. In this cage 33, counterweights 35 are freely suspended from cables 34. In FIGS. 9, 11 and 12, there are shown, by way of example, six counterweights 35, the dimensions and consequently the weights decrease from top to bottom.

Dans la position verticale de la partie de plancher arrière 8, la plateforme 31 occupe sa position de repos inférieure et, dans ce cas, les divers contrepoids 35 sont suspendus librement à leurs câbles 34 sans être en contact l'un avec l'autre, ni avec la plateforme 31. Lorsque la partie de plancher arrière 8 est amenée de sa position verticale vers sa position horizontale, les appendices 30 viennent en contact avec la face inférieure des plateformes correspondantes 31 et provoquent un soulèvement de celles-ci, de telle sorte que chaque plateforme 31 vient en contact avec le contrepoids inférieur 35, puis à mesure que la plateforme 31 s'élève dans la cage 33, les contrepoids 35 viennent en contact l'un avec l'autre. Ainsi, les contrepoids 35 agissent l'un après l'autre sur l'appendice 30 des parties de longeron arrières 49, de manière à amortir le pivotement de la partie de plancher arrière 8. Au moment où cette partie de plancher arrière 8 est dans la position horizontale (voir figure 12), la plateforme 31 occupe sa position supérieure et supporte tous les contrepoids 35 en contact l'un avec l'autre.In the vertical position of the rear floor part 8, the platform 31 occupies its lower rest position and, in this case, the various counterweights 35 are freely suspended from their cables 34 without being in contact with each other or with the platform 31. When the rear floor part 8 is brought from its vertical position to its horizontal position, the appendages 30 come in contact with the lower face of the corresponding platforms 31 and cause them to be raised, so that each platform 31 comes into contact with the lower counterweight 35, then as the platform 31 rises in the cage 33, the counterweights 35 come into contact with each other. Thus, the counterweights 35 act one after the other on the appendage 30 of the rear spar parts 49, so as to dampen the pivoting of the rear floor part 8. When this rear floor part 8 is in the horizontal position (see FIG. 12), the platform 31 occupies its upper position and supports all the counterweights 35 in contact with one another.

Pour bloquer la partie de plancher arrière 8 en position verticale ou horizontale, on prévoit, dans une forme de réalisation exemplative de l'invention, des verrous 36, un verrou étant, de préférence, prévu, pour chaque partie de longeron arrière 49 de la partie de plancher arrière 8.To block the rear floor part 8 in a vertical or horizontal position, locks 36 are provided in an exemplary embodiment of the invention, a lock being preferably provided for each part of the rear spar 49 of the rear floor section 8.

Les verrous 36 sont fixés par des attaches 47 à une tige de guidage commune 37, grâce à laquelle on peut faire coulisser simultanément les verrous 36 sur un rail 38, par exemple en forme de U.The locks 36 are fixed by fasteners 47 to a common guide rod 37, by means of which the locks 36 can be made to slide simultaneously on a rail 38, for example in the shape of a U.

Le rail 38 est interrompu à l'endroit d'évidements 39 ménagés dans la paroi verticale arrière 4 de la cave 3 et de la salle, en manière, telle que, lorsque les parties de longeron arrières 49 de la partie de plancher arrière 8 sont déverrouillées, ces parties de longeron arrières peuvent librement pivoter. La tige de guidage commune 37 est évidemment montée en dehors du trajet des parties de longeron arrières 49 de la partie de plancher arrière 8.The rail 38 is interrupted at the location of recesses 39 formed in the rear vertical wall 4 of the cellar 3 and of the room, in such a way that, when the rear spar parts 49 of the rear floor part 8 are unlocked, these rear spar parts can pivot freely. The common guide rod 37 is obviously mounted outside the path of the rear spar parts 49 of the rear floor part 8.

Dès que les parties de longeron arrières 49 ont atteint la position verticale extrême, on fait glisser les verrous 36 en regard des évidements 39 du rail 38, de sorte que toutes les parties de longeron arrières sont verrouillées.As soon as the rear spar parts 49 have reached the extreme vertical position, the latches 36 are slid opposite the recesses 39 of the rail 38, so that all the rear spar parts are locked.

Les figures 15 et 16 montrent un système d'équilibrage par contrepoids hydrauliques de la partie de plancher arrière 8 et de toute l'installation.Figures 15 and 16 show a balancing system by hydraulic counterweights of the rear floor part 8 and of the entire installation.

Comme on le voit sur ces figures 15 et 16, on prévoit de part et d'autre des parties de longeron arrières 49 et au voisinage de chacune de leurs extrémités, une paire de récipients 42 et 43 qui sont fixés aux parties de longeron arrières 49, de chaque côte de l'arbre de rotation.As seen in these Figures 15 and 16, there are provided on either side of the rear spar parts 49 and in the vicinity of each of their ends, a pair of containers 42 and 43 which are fixed to the rear spar parts 49 , on each side of the rotation shaft.

Les récipients 42 et 43 sont reliés entre eux par un tuyau 44 dans lequel est montée une pompe 45. Un fluide (liquide ou solide pulvérulent) est contenu dans chaque ensemble constitué par les récipients 42, 43, les tuyaux 44 et les pompes 45.The containers 42 and 43 are interconnected by a pipe 44 in which a pump 45 is mounted. A fluid (liquid or pulverulent solid) is contained in each assembly constituted by the containers 42, 43, the pipes 44 and the pumps 45.

Dans la position horizontale de la partie de plancher arrière 8 montrée à la figure 15, cette partie de plancher est en équilibre (compte tenu du poids de la partie de plancher avant 9) lorsque les récipients 42 sont remplis de fluide.In the horizontal position of the rear floor part 8 shown in FIG. 15, this floor part is in equilibrium (taking into account the weight of the front floor part 9) when the containers 42 are filled with fluid.

Pour passer de la position horizontale, illustrée à la figure 15, à la position verticale, illustrée à la figure 16, le contenu des récipients 42 est amené par les tuyaux 44 et les pompes 45 dans les récipients 43. Des conduites 46 assurent une circulation d'air entre les récipients 42 et 43.To move from the horizontal position, illustrated in FIG. 15, to the vertical position, illustrated in FIG. 16, the contents of the containers 42 are brought by the pipes 44 and the pumps 45 into the containers 43. Conduits 46 ensure circulation. of air between the containers 42 and 43.

Dans la position verticale représentée à la figure 16, la partie de plancher arrière 8 est équilibrée (compte tenu du poids de la partie de plancher avant 9), lorsque tout le fluide contenu dans les récipients 42 a été pompé par les pompes 45 dans les récipients 43.In the vertical position shown in FIG. 16, the rear floor part 8 is balanced (taking into account the weight of the front floor part 9), when all the fluid contained in the containers 42 has been pumped by the pumps 45 in the containers 43.

Pour passer, sans perte d'équilibre, de la position verticale (figure 16) à la position horizontale (figure 15), le fluide est pompé progressivement des récipients 43 dans les récipients 42.To pass, without loss of balance, from the vertical position (FIG. 16) to the horizontal position (FIG. 15), the fluid is gradually pumped from the containers 43 into the containers 42.

Les contrepoids hydrauliques décrits ci-dessus offrent conjointement avec les verrous 36 décrits plus haut, une sécurité accrue lors du fonctionnement de l'installation suivant l'invention.The hydraulic counterweights described above offer, together with the locks 36 described above, increased security during the operation of the installation according to the invention.

En effet, lorsqu'une des positions extrêmes de la partie de plancher arrière 8 est atteinte, le fluide peut être repompé dans les récipients 42 et 43. Ainsi, par exemple, dans la position horizontale extrême de la partie de plancher arrière 8, le fluide (qui_ peut être par exemple constitué par de l'eau ou par une poudre sèche) peut être pompé dans les récipients 43, de telle sorte que la partie de plancher arrière 8 et la partie de plancher avant 9 qui y est articulée, prennent appui de mainière très stable sur le plancher 2 de la salle. Par contre, dans la position verticale extrême de la partie de plancher arrière 8, le fluide peut être pompé dans les récipients 42, en sorte que le centre de gravité de l'installation se trouve dans la cave 3, le cas échéant. Dans ces conditions, l'installation ne risque pas de basculer, même sans verrouillage.Indeed, when one of the extreme positions of the rear floor part 8 is reached, the fluid can be pumped back into the receptacles 42 and 43. Thus, for example, in the extreme horizontal position of the rear floor part 8, the fluid (which can for example consist of water or a dry powder) can be pumped into the containers 43, so that the rear floor part 8 and the front floor part 9 which is articulated therein take very stable support on the floor 2 of the room. On the other hand, in the extreme vertical position of the rear floor part 8, the fluid can be pumped into the containers 42, so that the center of gravity of the installation is in the cellar 3, if necessary. Under these conditions, the installation does not risk tipping over, even without locking.

Lorsqu'on a fait usage du système de sécurité accrue décrit dans la paragraphe précédent, il faudra évidemment, lorsqu'on désire effectuer une manoeuvre de basculement, ramener d'abord le fluide dans les autres récipients 42 ou 43.When use has been made of the increased safety system described in the previous paragraph, it will obviously be necessary, when it is desired to carry out a tilting maneuver, to bring the fluid first into the other containers 42 or 43.

Il est évident que l'on peut utiliser, le cas échéant, la variation de l'énergie développée par le moteur électrique 17 agissant sur l'arbre de rotation 11, pour mettre les pompes 45 en marche ou pour les arrêter.It is obvious that one can use, if necessary, the variation of the energy developed by the electric motor 17 acting on the rotation shaft 11, to start the pumps 45 or to stop them.

Les impulsions de mise en marche ou d'arrêt des pompes 45 peuvent aussi être fournies par un faisceau lumineux et des cellules photoélec- triques. A cet égard, on peut, le cas échéant, faire usage des petits mouvements du moteur électrique 17. Même si ce moteur est fermement ancré, le mouvement subi par le moteur au moment où il agit sur l'arbre de rotation, peut créer les impulsions par faisceau lumineux et cellule photoélectrique, nécessaires pour la mise en marche ou l'arrêt de la ou des pompes 45.The pulses for starting or stopping the pumps 45 can also be supplied by a light beam and photoelectric cells. In this regard, small movements of the electric motor 17 can be used if necessary. Even if this motor is firmly anchored, the movement undergone by the motor when it acts on the rotation shaft, can create the pulses by light beam and photocell, necessary for starting or stopping the pump (s) 45.

Une condition nécessaire pour un bon fonctionnement des contrepoids hydrauliques réside dans le fait que le temps nécessaire pour que l'installation passe d'une position extrême à l'autre, durera plus longtemps que la durée pendant laquelle le fluide est pompé d'une série de récipients 42 ou 43 à l'autre série de récipients 43 ou 42.A necessary condition for the proper functioning of the hydraulic counterweights is that the time required for the installation to pass from one extreme position to the other will last longer than the time during which the fluid is pumped in a series from containers 42 or 43 to the other series of containers 43 or 42.

Il est évident que l'invention n'est pas limitée aux détails décrits plus haut et que de nombreuses modifications peuvent être apportées à ces détails sans sortir du cadre de l'invention.It is obvious that the invention is not limited to the details described above and that numerous modifications can be made to these details without departing from the scope of the invention.

L'installation suivant l'invention présente de nombreux avantages, dont quelques-uns sont cités à titre non limitatif ci-après:

  • 1. L'installation suivant l'invention ne nécessite pas de locaux spéciaux pour l'entreposage des parties de plancher et des sièges qu'elles portent, si ce n'est la petite fosse éventuellement prévue à l'arrière de la salle.
  • 2. Grâce à l'installation suivant l'invention, la salle peut être très rapidement adaptée à la fonction désirée: salle de théâtre ou de cinéma ou salle de sport ou de banquet.
  • 3. On ne doit disposer que d'une seule salle polyvalente munie d'un seul système de chauffage, de ventilation et d'éclairage.
  • 4. L'installation est muni d'un système de freinage qui agit automatiquement en_ cas de vitesse anormale en sorte que, même en cas d'un défaut éventuel, l'installation peut encore atteindre une position extrême avec une vitesse acceptable, sans créer un effet de choc violent.
  • 5. Dans le cadre de l'invention, les pompes 45 du système de contrepoids hydrauliques peuvent être mises en marche et arrêtées par un quelconque système de programmation.
The installation according to the invention has many advantages, some of which are mentioned without implied limitation below:
  • 1. The installation according to the invention does not require special premises for the storage of the floor parts and of the seats which they carry, except for the small pit possibly provided at the rear of the room.
  • 2. Thanks to the installation according to the invention, the room can be quickly adapted to the desired function: theater or cinema room or sports or banquet hall.
  • 3. There should only be one multipurpose room with only one heating, ventilation and lighting system.
  • 4. The installation is provided with a braking system which acts automatically in the event of abnormal speed so that, even in the event of a possible fault, the installation can still reach an extreme position with an acceptable speed, without creating a violent shock effect.
  • 5. In the context of the invention, the pumps 45 of the hydraulic counterweight system can be started and stopped by any programming system.

Claims (5)

1. System for converting at will a hall having a fixed floor into a sport or gymnastic hall or into a theatre or entertainment hall, comprising a movable floor which, in the use position, extends slantwise or by steps in the upward direction and which comprises a front floor part (9) and a back floor part (8), the front edge of which is linked to the back end (14) of the front floor part (9), the back floor part (8) being mounted so as to be able to pivot together with the front floor part (9) until the two floor parts reach a non-use substantially vertical position, characterized in that the back floor part (8) is carried by horizontal pivots or by a horizontal shaft (11) extending at some distance from its ends (16) and operating means are provided for causing the back floor part (8) to pivot clockwise or couterclockwise, the operating means and the link between the front (9) and back (8) floor parts being such that said link raises and the front floor part (9) pivots simultaneously toward the back floor part (8) around said link, whereas the front end (15) of the front floor part (9) remains at least in the vicinity of the fixed floor (2) of the hall and the back floor part (8) is caused to pivot, under the influence of the operating means, toward the substantially vertical position around the horizontal pivots or the horizontal shaft (11) until it reaches a non use position, wherein the lower face of the front floor part (9) is adjacent to the lower face of the back floor part (8), said link going down and the front floor part (9) pivoting so as to move away from the back floor part (8) when the operating means cause the back floor part (8) to pivot from the substantially vertical position to a substantially horizontal use position, in which both floor parts (8, 9) extend in prolongation of each other.
2. System according to claim 1, characterized in that it comprises means for maintaining the floor parts in the use position or in the non use position.
3. System according to claim 1 or 2, characterized in that the front end (15) of the front floor part (9) is arranged so as to remain substantially in contact with the fixed floor (2) of the hall, during the raising or going down of its back end (14) when the back floor part (8) is pivoted clockwise or counter-clockwise.
4. System according to claim 1, characterized in that the horizontal pivots or the horizontal shaft (11) are positioned near the fixed floor (2) of the hall at some distance from the ends (16) of the back floor part (8), so that, in the use position, said back floor part bears, on the major part of its length, on said fixed floor (2) of the hall and that the front floor part (9) entirely bears on said fixed floor (2) of the hall in its use position.
EP19780200375 1977-12-23 1978-12-18 Installation to transform a hall at will Expired EP0002865B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
BE183783A BE862255A (en) 1977-12-23 1977-12-23 INSTALLATION TO CONVERT A ROOM AT WILL
BE183783 1977-12-23
BE187889A BE867303R (en) 1978-05-22 1978-05-22 INSTALLATION POUR TRANSFORMER A VOLONTE UNE SALLE
BE187889 1978-05-22
BE191401 1978-10-27
BE191401A BE871602R (en) 1978-10-27 1978-10-27 INSTALLATION POUR TRANSFORMER A VOLONTE UNE SALLE

Publications (2)

Publication Number Publication Date
EP0002865A1 EP0002865A1 (en) 1979-07-11
EP0002865B1 true EP0002865B1 (en) 1981-09-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19780200375 Expired EP0002865B1 (en) 1977-12-23 1978-12-18 Installation to transform a hall at will

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EP (1) EP0002865B1 (en)
DE (1) DE2861044D1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500509B1 (en) * 1981-02-26 1985-10-25 Chauvet Henri MOBILE FLOOR STRUCTURE
FR2625470B1 (en) * 1987-12-30 1995-01-06 Chauvet Henri SYSTEM FOR DRIVING MOBILE TROLLEYS ON A RAIL AND METHOD FOR IMPLEMENTING SAME
FR2669070A1 (en) * 1990-11-09 1992-05-15 Compagnone Rocco Device for the provision of a plane capable of being used in at least two different surface states
DE9314476U1 (en) * 1993-09-24 1994-06-16 Orthaus Dieter Mobile stage
NL1022327C2 (en) * 2003-01-08 2004-07-09 Hans Hondius Multi functional building for e.g. sports stadium or theatre, comprises fixed part and movable part with specific functionality such as stadium seating
DE102011113229A1 (en) * 2011-09-12 2013-03-14 Wörsching Ingenieure GmbH Stepped platform has top group of stages having beam carrier portion whose upper end is rotatable on pivot axis, by pivot device and lower end is connected with beam carrier portion of adjacent stage group through hinge

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1067440A (en) * 1911-01-25 1913-07-15 Nat Construction Company Folding grandstand.
US2054960A (en) * 1926-01-29 1936-09-22 James H Adamson Folding grandstand
US2018887A (en) * 1934-12-15 1935-10-29 Spalding & Bros Ag Movable bleachers
DD115176A2 (en) * 1974-05-21 1975-09-12
DE2705943A1 (en) * 1977-02-12 1978-08-17 Max Maier Metallbau Gmbh & Co Movable storable auditorium platform - has rows of seats, pref. tiered, rigidly mounted on hinged carriers

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EP0002865A1 (en) 1979-07-11
DE2861044D1 (en) 1981-11-26

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