EP0254639A1 - Bearing and driving assembly for the coiling shaft of a roller door - Google Patents

Bearing and driving assembly for the coiling shaft of a roller door Download PDF

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Publication number
EP0254639A1
EP0254639A1 EP87401694A EP87401694A EP0254639A1 EP 0254639 A1 EP0254639 A1 EP 0254639A1 EP 87401694 A EP87401694 A EP 87401694A EP 87401694 A EP87401694 A EP 87401694A EP 0254639 A1 EP0254639 A1 EP 0254639A1
Authority
EP
European Patent Office
Prior art keywords
support
shaft
winding shaft
transmission module
axes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87401694A
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German (de)
French (fr)
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EP0254639B1 (en
Inventor
Bernard Kraeutler
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.)
Nergeco SA
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Nergeco SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR8610736A external-priority patent/FR2601996B1/en
Priority claimed from FR8706465A external-priority patent/FR2614930A2/en
Application filed by Nergeco SA filed Critical Nergeco SA
Priority to AT87401694T priority Critical patent/ATE57422T1/en
Publication of EP0254639A1 publication Critical patent/EP0254639A1/en
Application granted granted Critical
Publication of EP0254639B1 publication Critical patent/EP0254639B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/06—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
    • E06B9/0692—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising flexible sheets as closing screen
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B9/70—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned outside the roller

Definitions

  • the present invention relates to a support and transmission module for the winding shaft of a liftable curtain door.
  • Doors of this type are essentially intended for two distinct and irreconcilable uses: some are intended to provide protection against intrusion, in which case they comprise rigid curtains, generally made up of grids or articulated metal blades, which are quite heavy and relatively slow to operate; the others are intended to facilitate handling while constituting a heat shield, in which case they include flexible curtains, generally made of plasticized canvas or plastic wire, if necessary stiffened at regular intervals by horizontal reinforcing bars, which are light and quick to operate.
  • Figure 1 a view in schematic perspective of the upper part of a handling door whose shaft is used for winding lifting straps.
  • This door can be an accordion door, for example, whose curtain 1 is constituted by a rectangle of plasticized canvas, stiffened at regular intervals by horizontal reinforcing bars (not shown).
  • the lifting of this curtain is ensured by straps 2, one end of which is secured to the lower reinforcing bar and the other end of which is fixed to a winding shaft 3.
  • These straps 2 also pass through guides having the form of rectangular loops that are attached to all odd rebar from the bottom bar.
  • the door shown in Figure 1 comprises two vertical uprights 4 U-shaped, into which the ends of the reinforcing bars penetrate, and a horizontal cross-member 5 which connects the uprights 4, which supports the door motor assembly, and to which the upper edge of the curtain 1.
  • the motor assembly comprises the winding shaft 3, which can pivot freely in at least two bearings 6 provided with bearings 6 ⁇ , and an electric motor 7, coupled to a reduction gear 8, whose axis is parallel to that of the shaft 3, said motor driving said shaft via a transmission chain 9 and two toothed wheels 9 ⁇ and 9 ⁇ .
  • the motor assembly also comprises a manual emergency actuation device 10 comprising a rod and a bevel gear making it possible to drive the shaft 3 in rotation via the reduction gear 8, as well as a fine assembly of stroke 11 controlling the stopping of the motor 7 when the door reaches its maximum opening point and its fully closed point.
  • This limit switch assembly can be of different types, known per se. It can for example comprise a rod supporting a cam, driven in rotation simultaneously with the shaft 3. The cam acts on an electrical contact of a counter which increments or decrements by one unit at each revolution of the rod, according to the direction rotation, and controls the stopping of the motor 7 when a set value, corresponding to a limit position of the curtain, is reached.
  • a threaded rod 12 forming an endless screw parallel to the shaft 3 and the rotation of which is controlled by that of said shaft by means of a transmission chain 13 and two toothed wheels 13 ⁇ and 13 ⁇ .
  • This threaded rod moves a slider 14 to the right or to the left depending on the direction of rotation of the winding shaft 3, which slider controls two top and bottom limit switches 15 and 16 cutting the power to the motor 7 when cursor 14 presses on them.
  • the present invention aims to remedy these drawbacks. It relates to a support and transmission module for the winding shaft of a liftable curtain door which, in combination with another module of the same type, replaces the cross-member 5 the bearings 6 and their bearings 6 ⁇ , the cogwheels 9 ⁇ , 9 ⁇ and 13 ⁇ , 13 ⁇ as well as the transmission chains 9 and 13, the reducer 8 of the doors currently manufactured, which is of an easy and fast assembly, which is prefabricated industrially and which is totally reliable.
  • the invention further provides several variants of this module adapted to trees of any length, in particular to very long trees comprising several sections, as well as to trees which deform by turning (case of trees used for winding straps lifting).
  • a support and transmission module for the winding shaft of a liftable curtain door driven in rotation by an electric motor, said door being provided with a rod type limit switch with rotary drive (cam or threaded rod moving a cursor between two contacts, for example) includes: - a closed casing; - at least two parallel axes, a primary axis having one end opening out of the casing, connectable collinearly to the output shaft of the motor (or to the rod of the device limit switch), which motor (or limit switch device) is located outside said casing, and a secondary axis having one end opening out of the casing, connectable collinearly to the winding shaft; - transmission and reduction means subject to said axes, such as toothed wheels cooperating by meshing, for transmitting to the winding shaft (or to the rod of the end-of-travel device) the rotational force generated by the motor (or the rotation of the winding shaft) and to divide the speed of rotation of said motor (of said shaft); - sliding means, such
  • the two ends of the secondary axis of the module open to the outside of the casing and are connectable collinearly respectively to two successive sections of a winding shaft comprising at least two sections, said module ensuring , in addition to the support and transmission functions, that of junction.
  • connection of the winding shelter to the secondary axis of the module is carried out by a coupling member absorbing the deformations of which said shaft is the seat when it is driven in rotation.
  • this coupling member comprises a male part and a female part, said male part comprising two trunks of pyramid joined by the base and the female part comprising a bore of substantially constant and homothetic section of the base of said trunks of pyramid.
  • the base of the pyramid trunks constituting the male part is square.
  • an actuating device for a liftable curtain door, comprising: - a winding shaft, possibly comprising two or more sections, - a motor for driving said winding shaft, - a rod type end of travel device with rotary actuation, - two end modules for supporting the ends of the winding shaft, and - optionally at least one intermediate module for the support and the junction of the respective ends of two consecutive shaft sections, one of the end modules or the (one of) intermediate module (s) further ensuring the gear reduction to said shaft of the rotation generated by said motor, one of the end modules or (one of) the intermediate module (s) further ensuring the gear reduction to said rod with rotary actuation of the limit switch device the rotation of said tree.
  • FIG. 2 represents the upper part of a handling door, the flexible curtain 21 of which can be raised by means of straps 22.
  • the upper end of these straps is fixed to a winding shaft 23 made in one piece which is supported by two modules 24, 25.
  • An electric motor 27 is attached to module 25 and to module 24, a limit switch box 29 of the rotary drive type (cam rod or threaded rod moving a cursor between two contacts, for example).
  • FIG. 3 shows the upper part of a handling door of the same type as the previous one, but of width such that its winding shaft must be supported at three points (the handling doors being intended for warehouses, in industrial premises and the like, it happens that they have a large width, in which case their winding shaft must be supported in more than two points).
  • the shaft of this door has two sections 231, 232, the ends of which are supported by three modules 24, 50, 51.
  • the end modules 24, 25, 51 are placed above the uprights 26 of the door. If these amounts are dimensioned to support the door actuation system (i.e. all the parts necessary for actuating the curtain: motor, winding shaft, various bearings and bearings, etc.) and therefore do not serve iniquely guiding the lateral edges of the curtain 21, the end modules 24, 25, 51 can be subjected to said uprights. Otherwise, they can be fixed to the masonry in which is reserved the bay that the door is intended to close.
  • the intermediate module 50 is fixed to the masonry, either directly or by means of spacers or lines.
  • the modules end are no longer arranged above the door jambs but against said uprights, at their top. Corner references are then provided to deflect the straps,
  • the intermediate module (s), for its part, is (are) fixed (s) to the wall against which or in which is mounted the door, by means of spacers or hangers.
  • FIG 4 there is shown a sectional view of the module 25, along a vertical plane passing through the line A-A ⁇ of Figure 2.
  • This module comprises a metal casing 30, advantageously molded, inside which are arranged in parallel three axes: a primary axis 31, which is connected collinearly to the output shaft 32 of the motor 27, advantageously by means of a quick connection, of the type with interlocking of a male profile in a corresponding female profile, for example (the rigid type connection shown schematically in this figure is in fact only suitable for trees which do not deform by turning as we will see later below); a secondary axis 33, which is connected collinearly to the winding shaft 23, preferably also by means of a quick connection, of the type with interlocking of a male profile in a corresponding female profile; an intermediate axis 35 devoid of linear connection.
  • a primary axis 31 which is connected collinearly to the output shaft 32 of the motor 27, advantageously by means of a quick connection, of the type with interlocking of a
  • the axes 31, 33, 35 are held in bearings 36, 36 ⁇ , 38, 38 ⁇ , 40, 40 ⁇ , advantageously formed by molding on the inner surface of the casing 30, by means of ball or needle bearings 37, 37 ⁇ , 39, 39 ⁇ , 41, 41 ⁇ .
  • the primary axis 31 and the secondary axis 33 respectively carry a toothed wheel 42 and a toothed wheel 43, the diameter of the toothed wheel 42 being small compared to that of the toothed wheel 43, and the intermediate axis carries two wheels toothed 44 and 45, to cooperate respectively with the toothed wheels 43 and 42, the diameter of the toothed wheel 44 being small compared to that of the toothed wheel 45.
  • the assembly constituted by the intermediate axis 35 and the wheels 44 and 45 thus ensures the transmission to the winding shaft 23 of the rotational force generated by the motor 27 as well as the partial reduction of the speed of rotation of the output shaft 32 of the motor.
  • the compelt reduction device which comprises two reduction stages, is constituted by the set of wheels 43, 42, 44 and 45 of which the respective diameters are chosen so as to obtain an appropriate reduction ratio.
  • This reduction which in certain mechanical configurations could comprise only one stage or, on the contrary, more than two stages of reduction and which is necessary to divide the speed of rotation of the electric motor, is also used for the manual lifting of the curtain in case of engine failure.
  • the end of the primary axis 31 which is not connected to the motor output shaft 32 opens out to the casing 30 and is provided with a bevel gear or any equivalent member 46 forming a bevel gear with a corresponding pinion or toothed member (not shown) fixed to the end of a rod dnt the other end comprises a crank.
  • the module 24 shown in Figure 5 has a similar conformation to that of the module 25 (the same numbers have been used to designate identical parts). It also comprises a casing 30 in which at least two provided with gear wheels of suitable diameter are kept parallel, a primary axis being connected to the rotary actuating rod 60 (threaded rod, cam rod, etc.) of a device for limit switch 29 and a secondary ace being connected to the winding shaft 23, one or more intermediate axes provided with gear wheels of suitable diameter which can possibly ensure the multiplied transmission of the rotation from the secondary axis to the primary axis , in case the speed of rotation of the winding shaft 23 and the operation of the end-of-travel device require it.
  • this module only one end of the primary axis 31 opens to the outside of the casing 30.
  • the lubrication of the modules 24, 25, which are provided sealed against humidity and dust, is advantageously ensured by an oil bath, the viscosity of the oil being chosen as a function of the temperature conditions under which the actuating device of the door concerned must work.
  • this lubrication can also be obtained by means of a suitable grease coated during mounting on the gear wheels and on the bearings.
  • actuation system for a medium-sized curtain door with only five parts or elements, namely a winding shaft, two modules, a motor. and a limit switch.
  • This actuation system is self-supporting, that is to say that it does not need to be fixed to a lintel beam unlike the actuation systems known from the prior art, which comprise a number of parts very much more important.
  • This system is also very easy to assemble and is, in view of its simplicity and compactness, very reliable.
  • This module is however only suitable for supporting winding shafts of medium length, that is to say not requiring to be maintained at other points than at their ends. It is also not directly usable on fast-acting doors comprising a flexible curtain, if necessary stiffened at regular intervals by horizontal reinforcing bars, the lifting of which is caused by the crumbling of straps around a tree, whether the curtain is folded like an accordion or whether it is wrapped around a bar attached to its lower end.
  • this type of doors in fact - unlike what happens with protective doors with a hinged metal curtain winding directly on a shaft driven at low speed by a motor - the strap winding shaft rotates quickly and it is not kept rectilinear by a curtain in a direction parallel to its axis which would wind around it.
  • the three modules 24, 50, 51 shown in Figure 3 are designed to support a shaft 23 of great length, comprising two sections 231, 232 and driven in rapid rotation to wind or unwind lifting straps 22. It therefore deforms into rotating and requires, for its support, modules of a particular type.
  • the end module 24 ensures, in addition to supporting one end of the half-shaft 231, the multiplied transmission of the rotational movement of said half-shaft to the rod (threaded or cam) of a limit switch device 29
  • the end module 51 for its part, provides support for one end of the half-shaft 232. It may further comprise a simple reduction system engaged with the half-shaft 232, which can be actuated manually by means of a reference angle, a rod and a crank (not shown).
  • These two modules differ from the modules described above only in that they comprise a coupling member 52, intended for the connection of their secondary axis to one end of one of the half-shafts.
  • the intermediate module 50 whose FIG. 6 represents a sectional view along a plane passing through the line B-B ⁇ of FIG. 3, serves to support the other respective ends of the half-shafts 231 and 232, as well as for the transmission multiplied, in said half-shafts, by the rotation generated by the motor 27.
  • This module differs from the module described in relation to FIG. 4 in that: - Only one end of its primary axis 31 opens to the outside of the casing 30, which is connected to the output shaft 32 of the motor 27, advantageously by means of a quick connection, of the type with interlocking of a male profile in a corresponding female profile, for example; the two ends of its secondary axis open outside the casing 30. These two ends are connected, by a coupling member 52, to the two half-shafts 231, 232.
  • the winding shaft of the straps of the handling doors deforms by turning, without this deformation having a preferred direction.
  • This feature excludes that the connection between the secondary axis 33 of a module (whether it is support and transmission, case of modules 24, 50, or support only, case of module 51) and the shaft of a door of this type can be rigid, experience having shown that a rigid connection leads to very rapid deterioration of the modules. This is why it is planned to establish this connection by means of a coupling member capable of absorbing all the deformations of the winding shaft of the straps.
  • This coupling member can be a universal joint.
  • the known flexible coupling devices, as well as the universal joints thus make it possible to solve the problem posed, but they have the disadvantage of being generally quite expensive. So we put to the point, to meet this specific need, a coupling member that is both efficient and very easy to manufacture.
  • the coupling member according to the invention comprises a male part 520 and a female part 521 which are fixed respectively to the end of the secondary axis 33 of a module and at the end of a tree (or section of tree) 23, the reverse also being possible.
  • the male part 520 is formed of two trunks of pyramid joined by the base.
  • the base 522 of these pyramid trunks is advantageously square. It could however have the shape of any regular polygon.
  • the female part 521 consists of a cylinder pierced with a bore 523 of substantially constant section, homothetic to the base of the trunks of pyramids of the male part 520 and slightly greater than said base.
  • the two parts of this coupling member are made of a metal having good mechanical qualities.
  • the secondary axis 33 of the modules, as well as the coupling part or parts which are subject to it, can be manufactured in one piece.
  • the advantages presented by the module according to the invention are numerous: - concentration in the form of two compact and autonomous modules of at least twenty pieces: - industrial prefabrication of modules adaptable to all types of liftable curtain door; - quick and easy assembly, reduced or even zero maintenance; - increased reliability compared to the embodiments of the prior art; - saving of labor time due to all the characteristics listed above; - space saving due to the compactness of the modules thus designed.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Abstract

Un module de support et de transmission (25) pour l'arbre d'enroulement (23) d'une porte à rideau relevable entraîné en rotation par un moteur électrique comporte un carter (30) fermé contenant au moins deux axes parallèles (31, 33, 35). Un axe primaire (31) et un axe secondaire (33) sont connectables colinéairement respectivement à l'arbre de sortie (32) du moteur et à l'arbre d'enroulement (23). Ces axes portent des roues dentées (42, 43, 44, 45) qui les rendent solidaires: elles transmettent à l'arbre d'enroulement (23) la force de rotation engendrée par le moteur (27) et divisent la vitesse de rotation dudit moteur. Ce module fiable, préfabricable industriellement et adaptable sur tout type de porte à rideau relevable permet, en combinaison avec un module similaire, de remplacer la vingtaine de pièces nécessaires à la réalisation du dispositif de support et d'entraînement de l'arbre d'enroulement d'une porte à rideau relevable.A support and transmission module (25) for the winding shaft (23) of a liftable curtain door driven in rotation by an electric motor comprises a closed casing (30) containing at least two parallel axes (31, 33, 35). A primary axis (31) and a secondary axis (33) are connectable collinearly respectively to the output shaft (32) of the motor and to the winding shaft (23). These axes carry toothed wheels (42, 43, 44, 45) which make them integral: they transmit to the winding shaft (23) the rotational force generated by the motor (27) and divide the speed of rotation of said engine. This reliable module, which can be prefabricated industrially and can be adapted to any type of liftable curtain door, makes it possible, in combination with a similar module, to replace the twenty or so parts required to make the support and drive device for the winding shaft. of a liftable curtain door.

Description

La présente invention a pour objet un module de support et de transmission pour l'arbre d'enroulement d'une porte à rideau relevable.The present invention relates to a support and transmission module for the winding shaft of a liftable curtain door.

Cette invention concerne toutes les portes à rideau relevable comportant un arbre d'enroulement entraîné en rotation par un moteur extérieur audit arbre. Les portes de ce type sont destinées essentiellement à deux usages distincts et inconciliables : les unes ont pour finalité d'assurer la protection contre l'intrusion, auquel cas elles comportent des rideaux rigides, généralement constitués de grilles ou de lames métalliques articulées, qui sont assez lourds et relativement lents à actionner ; les autres ont pour finalité de faciliter la manutention tout en consituant un écran thermique, auquel cas elles comportent des rideaux souples, généralement constitués de toile plastifiée ou de fil plastique, le cas échéant rigidifiés à intervalles réguliers par des barres d'armature horizontales, lesquels sont légers et rapides à actionner. Au-delà de leurs finalités et de leurs modes de réalisation différents, toutes ces portes, auxquelles l'invention s'applique indifféremment, comportent un arbre d'enroulement sur lequel viennent s'enrouler soit les rideaux eux-mêmes dans le cas des portes de protection et de certaines portes de manutentions, soit les sangles de levage des rideaux, dans le cas des portes de manutention du type accordéon par exemple.This invention relates to all liftable curtain doors comprising a winding shaft driven in rotation by a motor external to said shaft. Doors of this type are essentially intended for two distinct and irreconcilable uses: some are intended to provide protection against intrusion, in which case they comprise rigid curtains, generally made up of grids or articulated metal blades, which are quite heavy and relatively slow to operate; the others are intended to facilitate handling while constituting a heat shield, in which case they include flexible curtains, generally made of plasticized canvas or plastic wire, if necessary stiffened at regular intervals by horizontal reinforcing bars, which are light and quick to operate. Beyond their purposes and their different embodiments, all of these doors, to which the invention applies equally, have a winding shaft on which the curtains themselves are wound in the case of doors protection and certain handling doors, ie the curtain lifting straps, in the case of accordion type handling doors for example.

Pour expliquer de façon détaillée comment le support et l'entraînement de l'arbre d'enroulement d'une porte à rideau relevable sont réalisés usuellement, que cette porte soit de manutention ou de protection, on a représenté sur la figure 1 une vue en perspective schématique de la partie supérieure d'une porte de manutention dont l'arbre sert à l'enroulement de sangles de levage. Cette porte peut être une porte accordéon, par exemple, dont le rideau 1 est constitué par un rectangle de toile plastifiée, rigidifié à intervalles réguliers par des barres d'armature horizontales (non représentées). Le levage de ce rideau est assuré par des sangles 2 dont une extrémité est assujettie à la barre d'armature inférieure et dont l'autre extrémité est fixée sur un arbre d'enroulement 3. Ces sangles 2 passent en outre dans des guides ayant la forme de boucles rectangulaires qui sont fixées sur toutes les barres d'armatures impaires, à partir de la barre inférieure. De la sorte, l'enroulement des sangles 2 sur l'arbre 3 provoque le pliage en accordéon et le levage du rideau souple 1. La porte représentée sur la figure 1 comporte deux montants verticaux 4 profilés en U, dans lesquels pénètrent les extrémités des barres d'armature, et une traverse horizontale 5 qui relie les montants 4, qui supporte l'ensemble moteur de la porte, et à laquelle est assujetti le bord supérieur du rideau 1. L'ensemble moteur comprend l'arbre d'enroulement 3, lequel peut pivoter librement dans au moins deux paliers 6 munis de roulements 6ʹ, et un moteur électrique 7, couplé à un réducteur 8, dont l'axe est parallèle à celui de l'arbre 3, ledit moteur entraînant ledit arbre par l'intermédiaire d'une chaîne de transmission 9 et de deux roues dentées 9ʹ et 9ʺ. L'ensemble moteur comporte en outre un dispositif d'actionnement de secours manuel 10 comprenant une tige et un renvoi d'angle permettant d'entraîner l'arbre 3 en rotation par l'intermédiaire du réducteur 8, ainsi qu'un ensemble fin de course 11 commandant l'arrêt du moteur 7 lorsque la porte arrive à son point d'ouverture maximale et à son point de fermeture totale. Cet ensemble fin de course peut être de différents types, connus en soi. Il peut par exemple comporter une tige supportant une came, entrainée en rotation simultanément à l'arbre 3. La came agit sur un contact électrique d'un compteur qui incrémente ou décrémente d'une unité à chaque tour de la tige, selon le sens de la rotation, et commande l'arrêt du moteur 7 quand une valeur de consigne, correspondant à une postition limite du rideau, est atteinte. L'ensemble fin de course représenté sur la figure 1 comprend, quant à lui, une tige filetée 12 formant vis sans fin parallèle à l'arbre 3 et dont la rotation est commandée par celle dudit arbre au moyen d'une chaîne de transmission 13 et de deux roues dentées 13ʹ et 13ʺ. Cette tige filetée déplace un curseur 14 vers la droite ou vers la gauche selon le sens de rotation de l'arbre d'enroulement 3, lequel curseur commande deux contacts de fin de course haut et bas 15 et 16 coupant l'alimentation du moteur 7 lorsque le curseur 14 fait pression sur eux.To explain in detail how the support and the drive of the winding shaft of a liftable curtain door are usually carried out, whether this door is handling or protective, there is shown in Figure 1 a view in schematic perspective of the upper part of a handling door whose shaft is used for winding lifting straps. This door can be an accordion door, for example, whose curtain 1 is constituted by a rectangle of plasticized canvas, stiffened at regular intervals by horizontal reinforcing bars (not shown). The lifting of this curtain is ensured by straps 2, one end of which is secured to the lower reinforcing bar and the other end of which is fixed to a winding shaft 3. These straps 2 also pass through guides having the form of rectangular loops that are attached to all odd rebar from the bottom bar. In this way, the winding of the straps 2 on the shaft 3 causes the folding accordion and the lifting of the flexible curtain 1. The door shown in Figure 1 comprises two vertical uprights 4 U-shaped, into which the ends of the reinforcing bars penetrate, and a horizontal cross-member 5 which connects the uprights 4, which supports the door motor assembly, and to which the upper edge of the curtain 1. The motor assembly comprises the winding shaft 3, which can pivot freely in at least two bearings 6 provided with bearings 6ʹ, and an electric motor 7, coupled to a reduction gear 8, whose axis is parallel to that of the shaft 3, said motor driving said shaft via a transmission chain 9 and two toothed wheels 9ʹ and 9ʺ. The motor assembly also comprises a manual emergency actuation device 10 comprising a rod and a bevel gear making it possible to drive the shaft 3 in rotation via the reduction gear 8, as well as a fine assembly of stroke 11 controlling the stopping of the motor 7 when the door reaches its maximum opening point and its fully closed point. This limit switch assembly can be of different types, known per se. It can for example comprise a rod supporting a cam, driven in rotation simultaneously with the shaft 3. The cam acts on an electrical contact of a counter which increments or decrements by one unit at each revolution of the rod, according to the direction rotation, and controls the stopping of the motor 7 when a set value, corresponding to a limit position of the curtain, is reached. The limit switch assembly shown in FIG. 1 comprises, for its part, a threaded rod 12 forming an endless screw parallel to the shaft 3 and the rotation of which is controlled by that of said shaft by means of a transmission chain 13 and two toothed wheels 13ʹ and 13ʺ. This threaded rod moves a slider 14 to the right or to the left depending on the direction of rotation of the winding shaft 3, which slider controls two top and bottom limit switches 15 and 16 cutting the power to the motor 7 when cursor 14 presses on them.

Bien que la porte décrite ci-dessus soit d'un modèle particulier et que l'agencement de ses différentes pièces soit sujet à des variantes (moteur fixé le long de l'un des montants, dont l'axe est perpendiculaire à celui de l'arbre d'enroulement, par exemple) il reste que toutes les portes à rideau relevable comportent des dispositifs de support et d'entraînement de l'arbre d'enroulement similaires. Or, comme il est apparu à la lecture de la description qui précède, ce dispositif comporte de nombreuses pièces : pièces de support proprement dites, traverse 5, paliers 6, roulements 6ʹ ; pièces de transmission et de démultiplication, réducteur 8, chaînes de transmission 9 et 13, roues dentées 9ʹ, 9ʺ et 13ʹ, 13ʺ ; pièces motrices ou de commande, moteur 7 et fin de course 11. Dans la pratique, à cet ensemble de pièces constituant un minimum fonctionnel s'ajoute un certain nombre de pièces de support (traverse 5 notamment) et de calage nécessaires à l'assemblage desdites pièces fonctionnelles en vue de la fabrication sur mesure d'une porte de dimensions données. Il va de soi que la réalisation de ces pièces supplémentaires, ainsi que le montage soigneux de l'ensemble des pièces énumérées ci-dessus, lesquelles doivent être positionnées les unes par rapport aux autres de façon relativement précise, requierent un temps et une main d'oeuvre importants. De surcroît, la multiplication des organes de transmission ainsi que des points de fixation multiplie les risques de panne ultérieurs.Although the door described above is of a particular model and the arrangement of its different parts is subject to variants (motor fixed along one of the uprights, whose axis is perpendicular to that of the (winding shaft, for example) the fact remains that all the liftable curtain doors have similar support and drive devices for the winding shaft. However, as it appeared on reading the above description, this device comprises many parts: support parts proper, crosspiece 5, bearings 6, bearings 6ʹ; transmission and reduction parts, reduction gear 8, transmission chains 9 and 13, toothed wheels 9ʹ, 9ʺ and 13ʹ, 13ʺ; driving or control parts, motor 7 and limit switch 11. In practice, to this set of parts constituting a functional minimum is added a certain number of support parts (cross-piece 5 in particular) and of wedging necessary for assembly. said functional parts for the custom manufacture of a door of given dimensions. It goes without saying that the production of these additional parts, as well as the careful assembly of all of the parts listed above, which must be positioned relatively relatively to each other, require time and a hand of 'important work. In addition, the multiplication of transmission members as well as fixing points multiplies the risks of subsequent failure.

La présente invention a pour but de remédier à ces inconvénients. Elle a pour objet un module de support et de transmission pour l'arbre d'enroulement d'une porte à rideau relevable qui, en combinaison avec un autre module du même type, remplace la traverse 5 les paliers 6 et leurs roulements 6ʹ, les roues dentées 9ʹ, 9ʺ et 13ʹ, 13ʺ ainsi que les chaînes de transmission 9 et 13, le réducteur 8 des portes fabriquées actuellement, qui soit d'un montage aisé et rapide, qui soit préfabriquable industriellement et qui soit rotalement fiable. L'invention prévoir en outre plusieurs variantes de ce module adaptées aux arbres de toute longueur, en particulier aux arbres de grande longueur comportant plusieurs tronçons, ainsi qu'aux arbres qui se déforment en tournant (cas des arbres servant à l'enroulement de sangles de levage, notamment).The present invention aims to remedy these drawbacks. It relates to a support and transmission module for the winding shaft of a liftable curtain door which, in combination with another module of the same type, replaces the cross-member 5 the bearings 6 and their bearings 6ʹ, the cogwheels 9ʹ, 9ʺ and 13ʹ, 13ʺ as well as the transmission chains 9 and 13, the reducer 8 of the doors currently manufactured, which is of an easy and fast assembly, which is prefabricated industrially and which is totally reliable. The invention further provides several variants of this module adapted to trees of any length, in particular to very long trees comprising several sections, as well as to trees which deform by turning (case of trees used for winding straps lifting).

Selon l'invention, un module de support et de transmission pour l'arbre d'enroulement d'une porte à rideau relevable entraîné en rotation par un moteur électrique, ladite porte étant munie d'un dispositif de fin de course du type à tige à entrainement rotatif (tige à came ou à tige filetée déplaçant un curseur entre deux contacts, par exemple) comporte :
- un carter fermé;
- au moins deux axes parallèles, un axe primaire ayant une extrémité débouchant à l'extérieur du carter, connectable colinéairement à l'arbre de sortie du moteur (ou à la tige du dispositif de fin de course), lequel moteur (ou dispositif de fin de course) est situé à l'extérieur dudit carter, et un axe secondaire ayant une extrémité débouchant à l'extérieur du carter, connectable colinéariement à l'arbre d'enroulement ;
- des moyens de transmission et de démultiplication assujettis auxdits axes, tels que des roues dentées coopérant par engrènement, pour transmettre à l'arbre d'enroulement (ou à la tige du dispositif de fin de course) la force de rotation engendrée par le moteur (ou la rotation de l'arbre d'enroulement) et pour diviser la vitesse de rotation dudit moteur (dudit arbre) ;
- des moyens de glissement, tels que des roulements à billes ou à aiguilles, pour permettre la rotation libre des axes ;
- des paliers pour supporter lesdits moyens de glissement.According to the invention, a support and transmission module for the winding shaft of a liftable curtain door driven in rotation by an electric motor, said door being provided with a rod type limit switch with rotary drive (cam or threaded rod moving a cursor between two contacts, for example) includes:
- a closed casing;
- at least two parallel axes, a primary axis having one end opening out of the casing, connectable collinearly to the output shaft of the motor (or to the rod of the device limit switch), which motor (or limit switch device) is located outside said casing, and a secondary axis having one end opening out of the casing, connectable collinearly to the winding shaft;
- transmission and reduction means subject to said axes, such as toothed wheels cooperating by meshing, for transmitting to the winding shaft (or to the rod of the end-of-travel device) the rotational force generated by the motor (or the rotation of the winding shaft) and to divide the speed of rotation of said motor (of said shaft);
- sliding means, such as ball or needle bearings, to allow free rotation of the axes;
- Bearings to support said sliding means.

Selon une caractéristique de l'invention, les deux extrémités de l'axe secondaire du module débouchent à l'extérieur du carter et sont connectables colinéairement respectivement à deux tronçons successifs d'un arbre d'enroulement comportant au moins deux tronçons, ledit module assurant, outre les fonctions de support et de transmission, celle de jonction.According to a characteristic of the invention, the two ends of the secondary axis of the module open to the outside of the casing and are connectable collinearly respectively to two successive sections of a winding shaft comprising at least two sections, said module ensuring , in addition to the support and transmission functions, that of junction.

Selon une autre caractéristique de l'invention, la connexion de l'abre d'enroulement à l'axe secondaire du module est réalisée par un organe d'accouplement absorbant les déformations dont ledit arbre est le siège lorsqu'il est entraîné en rotation. Avantageusement, cet organe d'accouplement comporte une pièce mâle et une pièce femelle, ladite pièce mâle comprenant deux troncs de pyramide accolés par la base et la pièce femelle comprenant un alésage de section sensiblement constante et homothétique de la base desdits troncs de pyramide. Avantageusement, la base des troncs de pyramide constituant la pièce mâle est carrée.According to another characteristic of the invention, the connection of the winding shelter to the secondary axis of the module is carried out by a coupling member absorbing the deformations of which said shaft is the seat when it is driven in rotation. Advantageously, this coupling member comprises a male part and a female part, said male part comprising two trunks of pyramid joined by the base and the female part comprising a bore of substantially constant and homothetic section of the base of said trunks of pyramid. Advantageously, the base of the pyramid trunks constituting the male part is square.

Selon l'invention, on prévoit également un dispositif d'actionnement pour une porte à rideau relevable, comportant :
- un arbre d'enroulement, comprenant éventuellement deux tronçons ou plus,
- un moteur pour entraîner ledit arbre d'enroulement,
- un dispositif de fin de course du type à tige à actionnement rotatif,
- deux modules d'extrémité pour le support des extrémités de l'arbre d'enroulement, et
- éventuellement au moins un module intermédiaire pour le support et la jonction des extrémités respectives de deux tronçons d'arbre consécutifs, un des modules d'extrémité ou le (un des) module(s) intermédiaire(s) assurant en outre la transmission démultipliée audit arbre de la rotation engendrée par ledit moteur, un des modules d'extrémité ou le (un des) module(s) intermédiaire(s) assurant en outre la transmission démultipliée à ladite tige à actionnement rotatif du dispositif de fin de course la rotation dudit arbre.According to the invention, an actuating device is also provided for a liftable curtain door, comprising:
- a winding shaft, possibly comprising two or more sections,
- a motor for driving said winding shaft,
- a rod type end of travel device with rotary actuation,
- two end modules for supporting the ends of the winding shaft, and
- optionally at least one intermediate module for the support and the junction of the respective ends of two consecutive shaft sections, one of the end modules or the (one of) intermediate module (s) further ensuring the gear reduction to said shaft of the rotation generated by said motor, one of the end modules or (one of) the intermediate module (s) further ensuring the gear reduction to said rod with rotary actuation of the limit switch device the rotation of said tree.

D'autres caractéristiques et avantages de la présente invention apparaîtront mieux à la lecture de la description qui va suivre, faite en relation avec les dessins annexeés, sur lesquels:

  • la figure 2 est une vue en perspective schématique du système d'actionnement d'une porte de manutention comportant deux modules de support et de transmission selon la présente invention;
  • la figure 3 est une vue en perspective schématique du système d'actionnement d'une porte de manutention de grande largeur comportant trois modules du support et de transmission selon l'invention;
  • la figure 4 est une vue en coupe partielle schématique, selon un plan vertical passant par la ligne A-Aʹ de la figure 2, d'un premier module de support et de transmission selon la présente invention ;
  • la figure 5 est une vue en coupe partielle schématique, selon un plan vertical passant par la ligne C-Cʹ de la figure 2, d'un deuxième module de support et de transmission selon la présente invention ;
  • la figure 6 est une vue en coupe partielle schématique, selon un plan vertical passant par la ligne B-Bʹ de la figure 3, d'un troisième module de support et de transmission selon la présente invention ;et,
  • la figure 7 est une vue en perspective schématique d'un mode de réalisation d'un accouplement module-arbre d'enroulement selon l'invention.
Other characteristics and advantages of the present invention will appear better on reading the description which follows, given in relation to the appended drawings, in which:
  • Figure 2 is a schematic perspective view of the actuation system of a handling door comprising two support and transmission modules according to the present invention;
  • Figure 3 is a schematic perspective view of the actuation system of a large-width handling door comprising three support and transmission modules according to the invention;
  • Figure 4 is a schematic partial sectional view, along a vertical plane passing through the line A-Aʹ of Figure 2, of a first support and transmission module according to the present invention;
  • Figure 5 is a schematic partial sectional view, along a vertical plane passing through the line C-Cʹ of Figure 2, of a second support and transmission module according to the present invention;
  • FIG. 6 is a schematic partial sectional view, along a vertical plane passing through the line B-Bʹ of FIG. 3, of a third support and transmission module according to the present invention; and,
  • Figure 7 is a schematic perspective view of an embodiment of a module-winding shaft coupling according to the invention.

La figure 2 représente la partie supérieure d'une porte de manutention dont le rideau souple 21 est relevable au moyen de sangles 22. L'extrémité supérieure de ces sangles est fixée à un arbre d'enroulement 23 fait d'une seule pièce qui est supporté par deux modules 24, 25. A chacun des montants 26 de la porte, ou à chacun des modules 24, 25, est fixée l'extrémité d'une barre 28 de suspension du rideau 21. Au module 25, est assujetti un moteur électrique 27 et au module 24, un boîtier de fin de course 29 du type à entrainement rotatif (tige à came ou à tige filetée déplaçant un curseur entre deux contacts, par exemple).FIG. 2 represents the upper part of a handling door, the flexible curtain 21 of which can be raised by means of straps 22. The upper end of these straps is fixed to a winding shaft 23 made in one piece which is supported by two modules 24, 25. To each of the uprights 26 of the door, or to each of the modules 24, 25, is fixed the end of a bar 28 for hanging the curtain 21. An electric motor 27 is attached to module 25 and to module 24, a limit switch box 29 of the rotary drive type (cam rod or threaded rod moving a cursor between two contacts, for example).

Sur la figure 3, on a représenté la partie supérieure d'une porte de manutention du même type que la précédente, mais de largeur telle que son arbre d'enroulement doit être supporté en trois points (les portes de manutention étant destinées aux entrepôts, aux locaux industriels et similaires, il arrive en effet qu'elles aient une grande largeur, auquel cas leur arbre d'enroulement doit être supporté en plus de deux points). L'arbre de cette porte comporte deux tronçons 231, 232 dont les extrémités sont supportées par trois modules 24, 50, 51.FIG. 3 shows the upper part of a handling door of the same type as the previous one, but of width such that its winding shaft must be supported at three points (the handling doors being intended for warehouses, in industrial premises and the like, it happens that they have a large width, in which case their winding shaft must be supported in more than two points). The shaft of this door has two sections 231, 232, the ends of which are supported by three modules 24, 50, 51.

Selon une disposition courante, qui est celle des figures 2 et 3, les modules d'extrémité 24, 25, 51 sont diposés au-dessus des montants 26 de la porte. Si ces montants sont dimensionnés pour supporter le système d'actionnement de la porte (savoir l'ensemble des pièces nécessaire à l'actionnement du rideau : moteur, arbre d'enroulement, paliers et roulements divers, etc.) et ne servent donc pas iniquement à guider les bords latéraux du rideau 21, les modules d'extrémité 24, 25, 51 peuvent être assujettis auxdits montants. Sinon, ils peuvent être fixés à la maçonnerie dans laquelle est réservée la baie que la porte est destinée à obturer. Le module intermédiaire 50 est fixé à la maçonnerie, soit directement, soit au moyen d'entretoises ou de suspentes.According to a common arrangement, which is that of FIGS. 2 and 3, the end modules 24, 25, 51 are placed above the uprights 26 of the door. If these amounts are dimensioned to support the door actuation system (i.e. all the parts necessary for actuating the curtain: motor, winding shaft, various bearings and bearings, etc.) and therefore do not serve iniquely guiding the lateral edges of the curtain 21, the end modules 24, 25, 51 can be subjected to said uprights. Otherwise, they can be fixed to the masonry in which is reserved the bay that the door is intended to close. The intermediate module 50 is fixed to the masonry, either directly or by means of spacers or lines.

Selon une autre disposition (non représentée), particulièrement avantageuse lorsque la hauteur de la porte est limitée, notamment à cause de la configuration du bâtiment où elle est installée, et qu'on veut disposer d'une ouverture aussi grande que possible, les modules d'extrémité sont disposés non plus au-dessus des montants de la porte mais contre lesdits montants, au niveau de leur sommet. Des renvois d'angle sont alors prévus dévier les sangles, Le (ou les) module(s) intermédiaire(s), quant à lui (eux), est (sont) fixé(s) au mur contre lequel ou dans lequel est montée la porte, au moyen d'entretoises ou de suspentes.According to another arrangement (not shown), particularly advantageous when the height of the door is limited, in particular because of the configuration of the building where it is installed, and when one wants to have as large an opening as possible, the modules end are no longer arranged above the door jambs but against said uprights, at their top. Corner references are then provided to deflect the straps, The intermediate module (s), for its part, is (are) fixed (s) to the wall against which or in which is mounted the door, by means of spacers or hangers.

Sur la figure 4, on a représenté une vue en coupe du module 25, selon un plan vertical passant par la ligne A-Aʹ de la figure 2. Ce module comporte un carter métallique 30, avantageusement moulé, à l'intérieur duquel sont disposés parallèlement trois axes : un axe primaire 31, qui est connecté colinéairement à l'arbre de sortie 32 du moteur 27, avantageusement au moyen d'une connexion rapide, du type à emboitement d'un profil mâle dans un profil femelle correspondant, par exemple (la connexion de type rigide schématisé sur cette figure n'est en fait adaptée qu'aux arbres qui ne se déforment pas en tournant comme on le verra plus loin plus loin) ; un axe secondaire 33, qui est connecté colinéairement à l'arbre d'enroulement 23, de préférence également au moyen d'une connexion rapide, du type à emboitement d'un profil mâle dans un profil femelle correspondant ;un axe intermédiaire 35 dépourvu de connexion linéaire. Les axes 31, 33, 35 sont maintenus dans des paliers 36, 36ʹ, 38, 38ʹ, 40, 40ʹ, formés avantageusement par moulage sur la surface intérieure du carter 30, par l'intermédiaire de roulements à billes ou à aiguilles 37, 37ʹ, 39, 39ʹ, 41, 41ʹ. L'axe primaire 31 et l'axe secondaire 33 portent respectivement une roue dentée 42 et une roue dentée 43, le diamètre de la roue dentée 42 étant petit par rapport à celui de la roue dentée 43, et l'axe intermédiaire porte deux roues dentées 44 et 45, pour coopérer respectivement avec les roues dentées 43 et 42, le diamètre de la roue dentée 44 étant petit par rapport à celui de la roue dentée 45. L'ensemble constitué par l'axe intermédiaire 35 et les roues 44 et 45 assure ainsi la transmission à l'arbre d'enroulement 23 de la force de rotation engendrée par le moteur 27 ainsi que la démultiplication partielle de la vitesse de rotation de l'arbre de sortie 32 du moteur. Le dispositif de démultiplication compelt, qui comporte deux étages de démultiplication, est constitué par l'ensemble des roues 43, 42, 44 et 45 dont choisit les diamètres respectifs de façon à obtenir un rapport de démultiplication approprié. Cette démultiplication, qui dans certaines configurations mécaniques pourrait ne comporter qu'un étage ou, au contraire, plus de deux étages de démultiplication et qui est nécessaire pour diviser la vitesse de rotation du moteur électrique, est également mise à profit pour le relevage manuel du rideau en cas de panne du moteur. A cette fin, l'extrémité de l'axe primaire 31 qui n'est pas connectée à l'arbre 32 de sortie du moteur débouche à l'extérieur du carter 30 et est munie d'un pignon conique ou de tout organe équivalent 46 formant un renvoi d'angle avec un pignon ou organe denté correspondant (non représenté) fixé à l'extrémité d'une tige dnt l'autre extrémité comporte une manivelle.In Figure 4, there is shown a sectional view of the module 25, along a vertical plane passing through the line A-Aʹ of Figure 2. This module comprises a metal casing 30, advantageously molded, inside which are arranged in parallel three axes: a primary axis 31, which is connected collinearly to the output shaft 32 of the motor 27, advantageously by means of a quick connection, of the type with interlocking of a male profile in a corresponding female profile, for example (the rigid type connection shown schematically in this figure is in fact only suitable for trees which do not deform by turning as we will see later below); a secondary axis 33, which is connected collinearly to the winding shaft 23, preferably also by means of a quick connection, of the type with interlocking of a male profile in a corresponding female profile; an intermediate axis 35 devoid of linear connection. The axes 31, 33, 35 are held in bearings 36, 36ʹ, 38, 38ʹ, 40, 40ʹ, advantageously formed by molding on the inner surface of the casing 30, by means of ball or needle bearings 37, 37ʹ , 39, 39ʹ, 41, 41ʹ. The primary axis 31 and the secondary axis 33 respectively carry a toothed wheel 42 and a toothed wheel 43, the diameter of the toothed wheel 42 being small compared to that of the toothed wheel 43, and the intermediate axis carries two wheels toothed 44 and 45, to cooperate respectively with the toothed wheels 43 and 42, the diameter of the toothed wheel 44 being small compared to that of the toothed wheel 45. The assembly constituted by the intermediate axis 35 and the wheels 44 and 45 thus ensures the transmission to the winding shaft 23 of the rotational force generated by the motor 27 as well as the partial reduction of the speed of rotation of the output shaft 32 of the motor. The compelt reduction device, which comprises two reduction stages, is constituted by the set of wheels 43, 42, 44 and 45 of which the respective diameters are chosen so as to obtain an appropriate reduction ratio. This reduction, which in certain mechanical configurations could comprise only one stage or, on the contrary, more than two stages of reduction and which is necessary to divide the speed of rotation of the electric motor, is also used for the manual lifting of the curtain in case of engine failure. To this end, the end of the primary axis 31 which is not connected to the motor output shaft 32 opens out to the casing 30 and is provided with a bevel gear or any equivalent member 46 forming a bevel gear with a corresponding pinion or toothed member (not shown) fixed to the end of a rod dnt the other end comprises a crank.

Le module 24 représenté sur la figure 5 est de conformation similaire à celle du module 25 (les mêmes chiffres ont été utilisés pour désigner des pièces identiques). Il comporte également un carter 30 dans lequel au moins deux munis de roues dentées de diamètre approprié sont maintenus parallèles, un axe primaire étant connecté à la tige à actionnement rotatif 60 (tige filetée, tige à came, etc.) d'un dispositif de fin de course 29 et un ace secondaire étant conncecté à l'arbre d'enroulement 23, un ou plusieurs axes intermédiaires munis de roues dentées de diamètre approprié pouvant éventuellement assurer la transmission démultipliée de la rotation de l'axe secondaire à l'axe primaire, au cas où la vitesse de rotation de l'arbre d'enroulement 23 et le fonctionnement du dispositif de fin de course l'exigeraient. Dans ce module, seule une extrémité de l'axe primaire 31 débouche à l'extérieur du carter 30.The module 24 shown in Figure 5 has a similar conformation to that of the module 25 (the same numbers have been used to designate identical parts). It also comprises a casing 30 in which at least two provided with gear wheels of suitable diameter are kept parallel, a primary axis being connected to the rotary actuating rod 60 (threaded rod, cam rod, etc.) of a device for limit switch 29 and a secondary ace being connected to the winding shaft 23, one or more intermediate axes provided with gear wheels of suitable diameter which can possibly ensure the multiplied transmission of the rotation from the secondary axis to the primary axis , in case the speed of rotation of the winding shaft 23 and the operation of the end-of-travel device require it. In this module, only one end of the primary axis 31 opens to the outside of the casing 30.

Dans les modules 24, 25 décrits ci-dessus, la transmission de la force de rotation engendrée par la moteur et la démultiplication de sa vitesse de rotation sont assurées par des roues dentées coopérant par engrènement. Il est possible également, bien que moins avantageux, de réaliser cette démultiplication au moyen de pignons dentés de différents diamètres et cette transmission au moyen de chaînes coopérant avec lesdits pignons.In the modules 24, 25 described above, the transmission of the rotational force generated by the motor and the reduction in its rotational speed are ensured by toothed wheels cooperating by meshing. It is also possible, although less advantageous, to achieve this reduction by means of toothed pinions of different diameters and this transmission by means of chains cooperating with said pinions.

La lubrification des modules 24, 25, qui sont prévus étanches à l'humidité et aux poussières, est avantageusement assurée par bain d'huile, la viscosité de l'huile étant choisie en fonction des conditions de température dans lesquelles le dispositif d'actionnement de la porte concernée doit travailler. Naturellement, cette lubrification peut également être obtenue au moyen d'une graisse appropriée enduite lors du montage sur les roues dentées et sur les roulements.The lubrication of the modules 24, 25, which are provided sealed against humidity and dust, is advantageously ensured by an oil bath, the viscosity of the oil being chosen as a function of the temperature conditions under which the actuating device of the door concerned must work. Naturally, this lubrication can also be obtained by means of a suitable grease coated during mounting on the gear wheels and on the bearings.

Grâce au module de transmission et de support décrit ci dessus, il est possible de réaliser un système d'actionnement pour une porte à rideau relevant de dimensions moyennes avec cinq pièces ou éléments seulement, savoir un arbre d'enroulement, deux modules, un moteur et un dispositif de fin de course. Ce système d'actionnement est autoportant, c'est-à-dire qu'il ne nécessite pas d'être fixé à une poutre formant linteau contrairement aux systèms d'actionnement connus de l'art antérieur, lesquels comportent un nombre de pièces beaucoup plus important. Ce système est en outre très facile à monter et il est, eu égard à sa simplicité et à sa compacité, très fiable.Thanks to the transmission and support module described above, it is possible to produce an actuation system for a medium-sized curtain door with only five parts or elements, namely a winding shaft, two modules, a motor. and a limit switch. This actuation system is self-supporting, that is to say that it does not need to be fixed to a lintel beam unlike the actuation systems known from the prior art, which comprise a number of parts very much more important. This system is also very easy to assemble and is, in view of its simplicity and compactness, very reliable.

Ce module n'est cependant adapté qu'au support d'arbres d'enroulement de longueur moyenne, c'est-à-dire n'exigeant pas d'être maintenus en d'autres points qu'en leurs extrémités. Il n'est en outre pas directement utilisable sur des portes à actionnement rapide comportant un rideau souple, le cas échéant rigidifié à intervalles réguliers par des barres d'armature horizontales, dont le lever est provoqué par l'ebroulement de sangles autour d'un arbre, que le rideau soit plié en accordéon ou qu'il soit enroulé autour d'une barre fixée à son extrémité inférieure. Avec ce type de portes, en effet -contrairement à ce qui se passe avec les portes de protection comportant un rideau métallique articulé s'enroulant directement sur un arbre entraîné à vitesse réduite par un moteur- l'arbre d'enroulement des sangles tourne rapidement et il n'est pas maintenu rectiligne par un rideau selon une direction parallèle à son axe qui s'enroulerait autour de lui. De fait, sous l'action de la vitesse de rotation qui lui est imprimée et de la charge qu'il doit supporter en quelques uns de ses points seulement (points d'attache des sangles), un tel arbre se déforme en tournant, ce qui provoque immanquablement, si la connexion de l'axe secondaire des modules de support aux extrémités dudit arbre n'a pas été conformée spécialement, en particulier si elle a été prévue rigide, une rupture dudit accouplement.This module is however only suitable for supporting winding shafts of medium length, that is to say not requiring to be maintained at other points than at their ends. It is also not directly usable on fast-acting doors comprising a flexible curtain, if necessary stiffened at regular intervals by horizontal reinforcing bars, the lifting of which is caused by the crumbling of straps around a tree, whether the curtain is folded like an accordion or whether it is wrapped around a bar attached to its lower end. With this type of doors, in fact - unlike what happens with protective doors with a hinged metal curtain winding directly on a shaft driven at low speed by a motor - the strap winding shaft rotates quickly and it is not kept rectilinear by a curtain in a direction parallel to its axis which would wind around it. In fact, under the action of the speed of rotation which is imparted to it and of the load which it must support at only a few of its points (points of attachment of the straps), such a tree is deformed by turning, this which inevitably causes, if the connection of the secondary axis of the support modules to the ends of said shaft has not been specially shaped, in particular if it has been provided rigid, a rupture of said coupling.

Les trois modules 24, 50, 51 représentés sur la figure 3 sont prévus pour supporter un arbre 23 de grande longueur, comportant deux tronçons 231, 232 et entraîné en rotation rapide pour enrouler ou dérouler des sangles de levage 22. Il se déforme donc en tournant et requiert, pour son support, des modules d'un type particulier.The three modules 24, 50, 51 shown in Figure 3 are designed to support a shaft 23 of great length, comprising two sections 231, 232 and driven in rapid rotation to wind or unwind lifting straps 22. It therefore deforms into rotating and requires, for its support, modules of a particular type.

Le module d'extrémité 24 assure, outre le support d'une extrémité du demi-arbre 231, la transmission démultipliée du mouvement de rotation dudit demi-arbre à la tige (filetée ou à came) d'un dispositif de fin de course 29. Le module d'extrémité 51 assure, quant à lui, le support d'une extrémité du demi-arbre 232. Il peut en outre comporter un système de démultiplication simple en prise avec le demi-arbre 232, actionnable manuellement grâce à un renvoi d'angle, une tige et une manivelle (non représentée). Ces deux modules ne diffèrent des modules décrit plus haut qu'en ce qu'ils comportent un organe d'accouplement 52, destiné à la connexion de leur axe secondaire à une extrémité de l'un des demi-arbres.The end module 24 ensures, in addition to supporting one end of the half-shaft 231, the multiplied transmission of the rotational movement of said half-shaft to the rod (threaded or cam) of a limit switch device 29 The end module 51, for its part, provides support for one end of the half-shaft 232. It may further comprise a simple reduction system engaged with the half-shaft 232, which can be actuated manually by means of a reference angle, a rod and a crank (not shown). These two modules differ from the modules described above only in that they comprise a coupling member 52, intended for the connection of their secondary axis to one end of one of the half-shafts.

Le module intermédiaire 50, dont la figure 6 représente une vue en coupe selon un plan passant par la ligne B-Bʹ de la figure 3, sert au support des autres extrémités respectives des demi-arbres 231 et 232, ainsi qu'à la transmission démultipliée, auxdits demi-arbres, de la rotation engendrée par le moteur 27.The intermediate module 50, whose FIG. 6 represents a sectional view along a plane passing through the line B-Bʹ of FIG. 3, serves to support the other respective ends of the half-shafts 231 and 232, as well as for the transmission multiplied, in said half-shafts, by the rotation generated by the motor 27.

Ce module diffère du module décrit en relation avec la figure 4 en ce que :
- seule une extrémité de son axe primaire 31 débouche à l'extérieur du carter 30, laquelle est connectée à l'arbre de sortie 32 du moteur 27, avantageusement au moyen d'une connexion rapide, du type à emboitement d'un profil mâle dans un profil femelle correspondant, par exemple ;
- les deux extrémités de son axe secondaire débouchent à l'extérieur du carter 30. Ces deux extrémités sont connectées, par un organe d'accouplement 52, aux deux demi-arbres 231, 232.This module differs from the module described in relation to FIG. 4 in that:
- Only one end of its primary axis 31 opens to the outside of the casing 30, which is connected to the output shaft 32 of the motor 27, advantageously by means of a quick connection, of the type with interlocking of a male profile in a corresponding female profile, for example;
the two ends of its secondary axis open outside the casing 30. These two ends are connected, by a coupling member 52, to the two half-shafts 231, 232.

Comme il a été expliqué plus haut, l'arbre d'enroulement des sangles des portes de manutention se déforme en tournant, sans que cette déformation n'ait de direction privilégiée. Cette particularité exclut que la connexion entre l'axe secondaire 33 d'un module (qu'il soit de support et de transmission, cas des modules 24, 50, ou de support uniquement, cas du module 51) et l'arbre d'une porte de ce type puisse être rigide, l'expérience ayant montré qu'une connexion rigide entraîne une détérioration très rapide des modules. C'est pourquoi, on prévoit d'établir cette connexion au moyen d'un organe d'accouplement capable d'absorber toutes les déformations de l'arbre d'enroulement des sangles. Cet organe d'accouplement peut être un joint de cardan. Ce peut être aussi un dispositif d'accouplement souple d'un type connu en soi, par exemple du type comportant deux disques métalliques dont l'un est muni de saillies radiales et l'autre de gorges radiales correspondantes, lesdites gorges étant de dimensions supérieures auxdites saillies et contenant des coussinets faits d'un matériau synthétique élastique comprenant chacun un évidement avec lequel coopére une desdites saillies. Les dispositifs d'accouplement souples connus, de même que les joints de cardan permettent ainsi de résoudre le problème posé, mais ils présentent l'inconvénient d'être en général assez coûteux. On a donc mis au point, pour répondre à ce besoin spécifique, un organe d'accouplement à la fois efficace et très facile à fabriquer.As explained above, the winding shaft of the straps of the handling doors deforms by turning, without this deformation having a preferred direction. This feature excludes that the connection between the secondary axis 33 of a module (whether it is support and transmission, case of modules 24, 50, or support only, case of module 51) and the shaft of a door of this type can be rigid, experience having shown that a rigid connection leads to very rapid deterioration of the modules. This is why it is planned to establish this connection by means of a coupling member capable of absorbing all the deformations of the winding shaft of the straps. This coupling member can be a universal joint. It can also be a flexible coupling device of a type known per se, for example of the type comprising two metal discs, one of which is provided with radial projections and the other with corresponding radial grooves, said grooves being of larger dimensions. to said projections and containing pads made of an elastic synthetic material each comprising a recess with which one of said projections cooperates. The known flexible coupling devices, as well as the universal joints thus make it possible to solve the problem posed, but they have the disadvantage of being generally quite expensive. So we put to the point, to meet this specific need, a coupling member that is both efficient and very easy to manufacture.

Comme on peut le voir sur les figures 5 et 6, l'organe d'accouplement selon l'invention comporte une pièce mâle 520 et une pièce femelle 521 qui sont fixées respectivement à l'extrémité de l'axe secondaire 33 d'un module et à l'extrémité d'un arbre (ou tronçon d'arbre) 23, l'inverse étant également possible. La pièce mâle 520 est formée de deux troncs de pyramide accolés par la base. Pour des raisons de facilité d'usinage, la base 522 de ces troncs de pyramide est avantageusement carrée. Elle pourrait cependant avoir la forme de tout polygone régulier. La pièce femelle 521 est constituée d'un cylindre percé d'un alésage 523 de section sensiblement constante, homothétique de la base des troncs de pyramides de la pièce mâle 520 et légèrement supérieure à ladite base. Les deux pièces de cet organe d'accouplement sont réalisées dans un métal ayant de bonnes qualités méchaniques. L'axe secondaire 33 des modules, ainsi que la ou les pièces d'accouplement qui lui sont assujetties, peuvent être fabriqués d'une pièce.As can be seen in FIGS. 5 and 6, the coupling member according to the invention comprises a male part 520 and a female part 521 which are fixed respectively to the end of the secondary axis 33 of a module and at the end of a tree (or section of tree) 23, the reverse also being possible. The male part 520 is formed of two trunks of pyramid joined by the base. For reasons of ease of machining, the base 522 of these pyramid trunks is advantageously square. It could however have the shape of any regular polygon. The female part 521 consists of a cylinder pierced with a bore 523 of substantially constant section, homothetic to the base of the trunks of pyramids of the male part 520 and slightly greater than said base. The two parts of this coupling member are made of a metal having good mechanical qualities. The secondary axis 33 of the modules, as well as the coupling part or parts which are subject to it, can be manufactured in one piece.

Comme il est apparu à la lecture de la description qui précède, les avantages présentés par le module selon l'invention sont nombreux:
- concentration sous la forme de deux modules compacts et autonomes d'au moins une vingtaine de pièces:
- préfabrication industrielle de modules adaptables à tous types de porte à rideau relevable;
- montage rapide et facile, entretien réduit, voire nul;
- fiabilité accrue par rapport aux réalisations de l'art antérieur;
- gain de temps de main d'oeuvre consécutif à toutes les caractéristiques énumérées ci-dessus;
- gain de place dû à la compacité des modules ainsi conçus.As it appeared on reading the above description, the advantages presented by the module according to the invention are numerous:
- concentration in the form of two compact and autonomous modules of at least twenty pieces:
- industrial prefabrication of modules adaptable to all types of liftable curtain door;
- quick and easy assembly, reduced or even zero maintenance;
- increased reliability compared to the embodiments of the prior art;
- saving of labor time due to all the characteristics listed above;
- space saving due to the compactness of the modules thus designed.

La présente invention n'est pas limitée aux exemples de réalisation qui viennent d'être décrits ; elle est au contraire susceptible de modifications et de variantes qui apparaîtront à l'homme de l'art.The present invention is not limited to the embodiments which have just been described; on the contrary, it is subject to modifications and variants which will appear to those skilled in the art.

Claims (14)

1. Module de support et de transmission pour l'arbre d'enroulement (23) d'une porte à rideau relevable entraîne en rotation par un moteur électrique (27), caractérisé en ce qu'il comporte :
- un carter (30) fermé;
- au moins deux axes (31, 33, 35) parallèles, un axe primaire (31) ayant une extrémité débouchant à l'extérieur dudit carter, connectable colinéairement à l'arbre de sortie (32) du moteur (27), qui est situé à l'extérieur dudit carter, et un axe secondaire (33) ayant une extrémité débouchant à l'extérieur dudit carter, connectable colinéairement à l'arbre d'enroulement (23) ;
- des moyens de transmission et de démultiplication (42, 43, 44, 45) assujettis auxdits pour transmettre à l'arbre d'enroulement (23) la force de rotation engendrée par le moteur (27) et pour diviser la vitesse de rotation dudit moteur ;
- des moyens de glissement (37, 37ʹ ; 39, 39ʹ ; 41, 41ʹ) pour permettre la rotation libre des axes (31, 33, 35) ;
- des paliers (36, 36ʹ ; 38, 38ʹ ; 40, 40ʹ) pour supporter lesdits moyens de glissement.1. Support and transmission module for the winding shaft (23) of a liftable curtain door driven in rotation by an electric motor (27), characterized in that it comprises:
- a closed casing (30);
- At least two axes (31, 33, 35) parallel, a primary axis (31) having one end opening out of said housing, connectable collinearly to the output shaft (32) of the motor (27), which is located outside of said casing, and a secondary axis (33) having one end opening out of said casing, connectable collinearly to the winding shaft (23);
- transmission and reduction means (42, 43, 44, 45) subject to said to transmit to the winding shaft (23) the rotational force generated by the motor (27) and to divide the rotational speed of said engine;
- sliding means (37, 37ʹ; 39, 39ʹ; 41, 41ʹ) to allow free rotation of the axes (31, 33, 35);
- bearings (36, 36ʹ; 38, 38ʹ; 40, 40ʹ) to support said sliding means. 2. Module de support et de transmission selon la revendication 1, l'arbre d'enroulement (23) comprenant au moins deux tronçons (231, 232), caractérisé en ce que les deux extrémités de l'axe secondaire (33) du module débouchent à l'extérieur du carter (30) et sont connectables colinéairement respectivement à deux tronçons d'arbre successifs, ledit module assurant, outre les fonctions de support et de transmission, celle de jonction.2. Support and transmission module according to claim 1, the winding shaft (23) comprising at least two sections (231, 232), characterized in that the two ends of the secondary axis (33) of the module open to the outside of the casing (30) and are connectable collinearly respectively to two successive shaft sections, said module ensuring, in addition to the support and transmission functions, that of junction. 3. Module de support et de transmission pour l'arbre d'enroulement (23) d'une porte à rideau relevable entraîné en rotation par un moteur électrique (27), ladite porte étant munie d'un dispositif de fin de course (29) comprenant une tige à actionnement rotatif (60), caractérisé en ce qu'il comporte :
- un carter fermé (30);
- au moins deux axes parallèles, un axe primaire (31) ayant une extrémité débouchant à l'extérieur dudit carter, connectable colinéairement à la tige à actionnement rotatif du dispositif de fin de course (29), lequel est situé à l'extérieur dudit carter, et un axe secondaire (33) ayant une extrémité débouchant à l'extérieur dudit carter, connectable colinéairement à l'arbre d'enroulement (23) ;
- des moyens de transmission et de démultiplication (42, 43, 44, 45) assujettis auxdits axes pour transmettre à la tige à actionnement rotatif (60) du dispositif de fin de course la rotation de l'arbre d'enroulement (23) et pour diviser ou multiplier la vitesse de rotation dudit arbre ;
- des moyens de glissement (37, 37ʹ ; 39, 39ʹ ; 41, 41ʹ) pour permettre la rotation libre des axes (31, 33, 35) ;
- des paliers (36, 36ʹ ; 38, 38ʹ ; 40, 40ʹ) pour supporter lesdits moyens de glissement.3. Support and transmission module for the winding shaft (23) of a liftable curtain door driven in rotation by an electric motor (27), said door being provided with a limit switch device (29 ) comprising a rod with rotary actuation (60), characterized in that it comprises:
- a closed casing (30);
- at least two parallel axes, a primary axis (31) having one end opening out of said casing, connectable collinearly to the rod with rotary actuation of the end device stroke (29), which is located outside of said housing, and a secondary axis (33) having one end opening out of said housing, connectable collinearly to the winding shaft (23);
- transmission and reduction means (42, 43, 44, 45) subject to said axes for transmitting to the rotary actuating rod (60) of the end-of-travel device the rotation of the winding shaft (23) and to divide or multiply the speed of rotation of said shaft;
- sliding means (37, 37ʹ; 39, 39ʹ; 41, 41ʹ) to allow free rotation of the axes (31, 33, 35);
- bearings (36, 36ʹ; 38, 38ʹ; 40, 40ʹ) to support said sliding means. 4. Module de support et de transmission selon une des revendications précédents, caractérisé en ce que les moyens de transmission et de démultiplication sont constitués par des roues dentées (42, 43, 44, 45) de dofférents diamètres assujetties aux axes (31, 33, 35) et coopérant par engrènement.4. Support and transmission module according to one of the preceding claims, characterized in that the transmission and reduction means consist of toothed wheels (42, 43, 44, 45) of different diameters subject to the axes (31, 33 , 35) and cooperating by meshing. 5. Module de support et de transmission selon une des revendications 1 à 3, caractérisé en ce que les moyens de transmission et de démultiplication sont constitués par des pignons dentés de différents diamètres, assujettis aux axes (31, 33, 35) et reliés les uns aux autres par des chaînes de transmission.5. Support and transmission module according to one of claims 1 to 3, characterized in that the transmission and reduction means consist of toothed pinions of different diameters, subject to the axes (31, 33, 35) and connected to the to each other by chains of transmission. 6. Module de support et de transmission selon une des revendications précédentes, caractérisé en ce que les moyens de glissement (37, 37ʹ ; 39, 39ʹ ; 41, 41ʹ) sont des roulements à billes.6. Support and transmission module according to one of the preceding claims, characterized in that the sliding means (37, 37ʹ; 39, 39ʹ; 41, 41ʹ) are ball bearings. 7. Module de support et de transmission une des revendications précédentes, caractérisé en ce que la connexion de l'arbre d'enroulement (23) à l'axe secondaire (33) dudit module est réalisée par un organe d'accouplement (52) absorbant les déformations dont ledit arbre est le siège lorsqu'il est entraîné en rotation.7. Support and transmission module one of the preceding claims, characterized in that the connection of the winding shaft (23) to the secondary axis (33) of said module is carried out by a coupling member (52) absorbing the deformations of which said shaft is the seat when it is rotated. 8. Module de support et de transmission selon la revendication 7, caractérisé en ce que l'organe d'accouplement est un joint de cardan.8. Support and transmission module according to claim 7, characterized in that the coupling member is a universal joint. 9. Module de support et de transmission selon la revendication 7, caractérisé en ce que l'organe d'accouplement est un dispositif d'accouplement souple.9. Support and transmission module according to claim 7, characterized in that the coupling member is a flexible coupling device. 10. Module de support et de transmission selon la revendication 7, caractérisé en ce que l'organe d'accouplement comporte une pièce mâle (520) et une pièce femelle (521), ladite pièce mâle comprenant deux troncs de pyramide accolés par la base (522) et la pièce femelle comprenant un alésage (523) de section sensiblement constante et homothétique de la base (522) desdits troncs de pyramide.10. Support and transmission module according to claim 7, characterized in that the coupling member comprises a male part (520) and a female part (521), said male part comprising two pyramid trunks joined by the base (522) and the female part comprising a bore (523) of substantially constant and homothetic section of the base (522) of said trunks pyramid. 11. Module de support et de transmission selon la revendication 10, caractérisé en ce que la base (522) des troncs de pyramide constituant la pièce mâle est carrée.11. Support and transmission module according to claim 10, characterized in that the base (522) of the pyramid trunks constituting the male part is square. 12. Module de support et de transmission selon la revendication 1, caractérisé en ce que l'extrémité de l'axe primaire 931) qui n'est pas adaptée à être connectée à l'arbre de sortie (32) du moteur débouche également à l'extérieur du carter (30) et supporte un organe de renvoi d'angle (46) pour coopérer avec un dispositif d'actionnement manuel de secours de la porte à rideau relevable.12. Support and transmission module according to claim 1, characterized in that the end of the primary axis 931) which is not adapted to be connected to the output shaft (32) of the engine also opens out at outside the casing (30) and supports an angle return member (46) to cooperate with a manual emergency actuation device for the liftable curtain door. 13. Dispositif d'actionement du rideau (21) d'une porte à déploiement vertical, caractérisé en ce qu'il comporte :
- un abre d'enroulement (23) pour provoquer le lever/baisser dudit rideau ;
- un moteur (27) pour entrainer ledit arbre en rotation ;
- un dispositif de fin de course (29) du type comprenant une tige à actionnement rotatif (60) ;
- un premier module (25) de support et de transmission, comprenant un carter (30) fermé contenant au moins deux axes (31, 33, 35) parallèles, auxquels sont assujetties des roues dentées (42, 43, 44, 45) rendant lesdits axes solidaires en rotation, une extrémité d'un axe primaire (31) étant connectée colinéairement à l'arbre de sortie (32) dudit moteur et une extrémité d'un axe secondaire (33) étant connectée colinéairement audit arbre d'enroulement (23) ; et
- un second module (24) de support et de transmission comprenant un carter (30) fermé contenant au moins deux axes (31, 33, 35), auxquels sont assujetties des roues dentées (42, 43, 44, 45) rendant lesdits axes solidaires en rotation, une extrémité d'un axe primaire (31) étant connectée colinéairement à la tige à actionnement rotatif (60) du dispositif de fin de course et une extrémité d'un axe secondaire (33) étant connectée colinéairement audit arbre d'enroulement (32).13. Device for operating the curtain (21) of a vertically deployed door, characterized in that it comprises:
- a winding bar (23) to cause the raising / lowering of said curtain;
- a motor (27) for driving said shaft in rotation;
- a limit switch device (29) of the type comprising a rod with rotary actuation (60);
- A first support and transmission module (25), comprising a closed casing (30) containing at least two parallel axes (31, 33, 35), to which toothed wheels (42, 43, 44, 45) are subjected making said axes integral in rotation, one end of a primary axis (31) being connected collinearly to the output shaft (32) of said motor and one end of a secondary axis (33) being connected collinearly to said winding shaft ( 23); and
- a second support and transmission module (24) comprising a closed casing (30) containing at least two axes (31, 33, 35), to which toothed wheels (42, 43, 44, 45) are subjected making said axes integral in rotation, one end of a primary axis (31) being connected collinearly to the rotary actuating rod (60) of the limit switch and one end of a secondary axis (33) being connected collinearly to said shaft winding (32). 14. Dispositif d'actionnement du rideau (21) d'une porte à déploiement vertical selon la revendication 13 dont l'arbre (23) comprend au moins deux tronçons (231, 232), caractérisé en ce qu'il comporte en outre au moins un module de support intermédiaire pour supporter une des extrémités de deux tronçons consécutifs et assurer leur jonction, ledit module comprenant un carter (30) contenant au moins un axe dont les extrémités débouchent à l'extérieur dudit carter et sont respectivement connectées colinéairement à deux tronçons consécutifs.14. Device for actuating the curtain (21) of a vertically deployed door according to claim 13, the shaft (23) of which comprises at least two sections (231, 232), characterized in that it further comprises at least one intermediate support module for supporting one of the ends of two consecutive sections and ensuring their junction, said module comprising a housing (30) containing at least one axis whose ends open out of said housing and are respectively connected collinearly to two consecutive sections.
EP87401694A 1986-07-23 1987-07-21 Bearing and driving assembly for the coiling shaft of a roller door Expired - Lifetime EP0254639B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87401694T ATE57422T1 (en) 1986-07-23 1987-07-21 BEARING AND GEAR UNIT FOR THE WINDING SHAFT OF A ROLLER DOOR.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8610736 1986-07-23
FR8610736A FR2601996B1 (en) 1986-07-23 1986-07-23 SUPPORT AND TRANSMISSION MODULE FOR THE WINDING SHAFT OF A LIFT CURTAIN
FR8706465 1987-05-07
FR8706465A FR2614930A2 (en) 1987-05-07 1987-05-07 Support and transmission module for the winding shaft of a roller shutter door

Publications (2)

Publication Number Publication Date
EP0254639A1 true EP0254639A1 (en) 1988-01-27
EP0254639B1 EP0254639B1 (en) 1990-10-10

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EP87401694A Expired - Lifetime EP0254639B1 (en) 1986-07-23 1987-07-21 Bearing and driving assembly for the coiling shaft of a roller door

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EP (1) EP0254639B1 (en)
CA (1) CA1284095C (en)
DE (1) DE3765489D1 (en)
ES (1) ES2018691B3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2250049A (en) * 1990-11-10 1992-05-27 Northern Door Co Roller shutters or curtains
CN103953276A (en) * 2014-05-13 2014-07-30 叶钢祥 Concealed driving type rolling gate capable of being adjusted and controlled freely

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GB2250049B (en) * 1990-11-10 1993-05-12 Northern Door Co Roller shutters or curtains
CN103953276A (en) * 2014-05-13 2014-07-30 叶钢祥 Concealed driving type rolling gate capable of being adjusted and controlled freely
CN103953276B (en) * 2014-05-13 2017-05-24 叶钢祥 Concealed driving type rolling gate capable of being adjusted and controlled freely

Also Published As

Publication number Publication date
CA1284095C (en) 1991-05-14
ES2018691B3 (en) 1991-05-01
DE3765489D1 (en) 1990-11-15
US4828003A (en) 1989-05-09
EP0254639B1 (en) 1990-10-10

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